Windows message center

Windows 10, version 20H2 is now available Windows 10, version 20H2 is now available
Find out how to get the update >
What’s new for IT pros What’s new for IT pros
Explore the latest features and servicing innovations in Windows 10, version 20H2 >
Planning for new capabilities in Windows 10 Planning for new capabilities in Windows 10
Get tips and best practices >
Looking for a list of current Windows 10 versions? Looking for a list of current Windows 10 versions?
See the Windows lifecycle fact sheet >

Recent announcements

MessageDate
Microsoft Ignite 2021 shows off the latest Windows capabilities
Check out the sessions and experiences at Microsoft Ignite 2021 that will bring you up to speed on all the latest Windows, Surface, and Microsoft Edge capabilities – and give you a look at where Microsoft is heading. Among many exciting announcements, we are happy to share that Windows release health is now part of the admin center. To learn more about what is new for Windows 10 resources, management, optimization, and more, check this week’s blog posts on Windows IT Pro Blog.
March 02, 2021
02:00 PM PT
February 2021 Windows non-security preview "C" release for Windows 10, version 20H2 is available
The February 2021 monthly “C” release preview update for Windows 10, version 20H2 and Windows 10, version 2004 is available. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
March 02, 2021
02:00 PM PT
Understanding the new Windows update history experience
Find out what you need to know about the recent changes to the online experience for Windows release notes and related documentation. From URL structure and KB identifiers to share and feedback options, the Windows IT Pro Blog walks you through the changes step by step.
March 02, 2021
02:00 PM PT
The next Long Term Servicing Channel release for Windows
The next version of Windows 10 Enterprise Long Term Servicing Channel (LTSC) and Windows 10 IoT Enterprise LTSC will be released in the second half of 2021. On the client side, Windows 10 LTSC will change to a five-year lifecycle, aligning with the changes to the next perpetual version of Office. Windows 10 IoT Enterprise LTSC and LTSC releases of Windows Server will maintain their 10-year support lifecycle. To learn more about these changes, see The next Windows 10 Long Term Servicing Channel (LTSC) release
March 02, 2021
02:00 PM PT
Microsoft Ignite 2021 shows off the latest Windows capabilities
Check out the sessions and experiences at Microsoft Ignite 2021 that will bring you up to speed on all the latest Windows, Surface, and Microsoft Edge capabilities – and give you a look at where Microsoft is heading. Among many exciting announcements, we are happy to share that Windows release health is now part of the admin center. To learn more about what is new for Windows 10 resources, management, optimization, and more, check this week’s blog posts on Windows IT Pro Blog.
March 02, 2021
12:00 PM PT
Introducing the next feature update - Windows 10, version 21H1
Available to Windows Insiders in the Beta Channel starting today, Windows 10, version 21H1 will offer a scoped set of features that enhance security, remote access, and quality, prioritizing users most pressing needs. Version 21H1 will utilize the same servicing technology used for the monthly update process, offering fast installation for devices running Windows 10, version 2004 and above. To learn more about this upcoming release, including details on our development and launch approach, see Introducing the next feature update to Windows 10, version 21H1.
February 17, 2021
02:00 PM PT
February 2021 Windows non-security preview "C" release is available for some versions for Windows 10
The February 2021 monthly "C" release preview updates are now available for Windows 10, version 1909 and Windows 10, version 1809. The preview update for Windows 10, version 20H2 and Windows 10, version 2004 will be available in the near term. Release notes associated with these updates might publish with a delay of up to an hour after the updates are available for download. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
February 16, 2021
02:00 PM PT
Out-of-band update to address an issue when making WPA3 Wi-Fi connections
Microsoft has identified an issue that affects a small number of devices with Windows 10, version 1909 and Windows Server, version 1909 and have expedited a resolution that will automatically be applied to most devices. This known issue affects devices with Wi-Fi connections using WPA3 (Wi-Fi Protected Access 3) which have installed KB4598298, released on January 21, 2021 or KB4601315, released on February 9, 2021. An out-of-band security update for Windows 10, version 1909 and Windows Server, version 1909 is now available to address this issue.

If you have automatic updates enabled for Windows Update, you will receive this update automatically and do not need to take any further action. It is a cumulative update, so you do not need to apply any previous update before installing it and it supersedes all previous updates for Windows 10, version 1909. The update is available on all release channels including Windows Update, Microsoft Update Catalog and Windows Server Update Services (WSUS). For more information and instructions on how to install this update on your device, see KB5001028. Note Release notes associated with this update might publish with a delay after the update is available for download.
February 11, 2021
10:00 AM PT
Take action - February 2021 security update available for all supported versions of Windows
The February 2021 security update release, referred to as our “B” release, is now available for Windows 10, version 20H2 and all supported versions of Windows. Release notes associated with these updates might publish with a delay of up to an hour after the updates are available for download. We recommend that you install these updates promptly. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. To be informed about the latest updates and releases, follow us on Twitter @WindowsUpdate.
February 09, 2021
10:00 AM PT
Multiple Security Updates Affecting TCP/IP - CVE-2021-24074, CVE-2021-24094, and CVE-2021-24086
Today Microsoft released a set of fixes affecting Windows TCP/IP implementation that include two Critical Remote Code Execution (RCE) vulnerabilities (CVE-2021-24074, CVE-2021-24094) and an Important Denial of Service (DoS) vulnerability (CVE-2021-24086). The two RCE vulnerabilities are complex which make it difficult to create functional exploits, so they are not likely in the short term. We believe attackers will be able to create DoS exploits much more quickly and expect all three issues might be exploited with a DoS attack shortly after release. The DoS exploits for these CVEs would allow a remote attacker to cause a stop error. Customers might receive a blue screen on any Windows system that is directly exposed to the internet with minimal network traffic.

We recommend that you apply the updates released February 9, 2021 with priority to all of your Windows devices, as they address CVE-2021-24074, CVE-2021-24094 and CVE-2021-24086. Here is what you need to know:
  • If you are running a supported version of Windows and have automatic updates enabled, you are automatically protected and do not need to take any further action.
  • If you are managing updates on behalf of your organization, you should download the latest updates from the Microsoft Security Update Guide and apply those updates to your Windows devices as soon as possible.
  • If you are unable to apply updates right away, look at the CVEs for the workaround mitigations to use in the short term until you can deploy the updates.
If you are running an unsupported version of Windows, we recommend that you upgrade to the current version of Windows to benefit from the latest security protections. 

For more information about this set of vulnerabilities, see the blog post Multiple Security Updates Affecting TCP/IP: CVE-2021-24074, CVE-2021-24094, and CVE-2021-24086.
February 09, 2021
10:00 AM PT
The quickest way to learn about Windows release health
Are you interested in easily exploring resources to help keep your Windows devices and environments healthy? If so, take a look at the new hub and improved navigation experience for Windows release health! The single-page view is designed to make it easy for IT pros to find and quickly navigate information about Windows updates, known issues, safeguards, lifecycle updates, news, and key announcements. To learn more, see The quickest way to learn about Windows release health.
 
Note: With this new hub experience, the URL for the Windows 10 release information page has changed. Moving forward, please bookmark https://aka.ms/windows/releaseinfo for current information about Windows 10 versions, editions, servicing options, and more. 
February 08, 2021
01:20 PM PT
The new Microsoft Edge to replace Microsoft Edge Legacy with April’s Windows 10 cumulative monthly security update
In August 2020, we announced that support for the Microsoft Edge Legacy desktop application ends on March 9, 2021. After this date, Microsoft Edge Legacy will no longer receive security updates. To replace this out of support application, we are announcing that the new Microsoft Edge will be available as part of the Windows 10 cumulative monthly security update - otherwise referred to as the Update Tuesday (or “B”) release - on April 13, 2021. When you apply this update to your devices, the out of support Microsoft Edge Legacy desktop application will be removed and the new Microsoft Edge will be installed. The new Microsoft Edge offers built-in security and our best interoperability with the Microsoft security ecosystem, all while being more secure than Chrome for businesses on Windows 10. To learn more, see The new Microsoft Edge to replace Microsoft Edge Legacy with April’s Windows 10 cumulative monthly security update.
February 05, 2021
09:15 AM PT
January 2021 Windows "C" optional release for Windows 10, version 20H2 and Windows 10, version 2004 is available
The January 2021 monthly “C” release preview update for Windows 10, version 20H2 and Windows 10, version 2004 is now available. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
February 02, 2021
02:00 PM PT
Scan changes and certificates add security for Windows devices using WSUS for updates
If your device utilizes Windows Server Update Services (WSUS) to acquire new updates, you'll benefit from the improved security added to our January 2021 cumulative update deployment. Distribution for this update is designed to help protect against man-in-the-middle attacks through the use of new scanning behavior changes for HTTPS-configured WSUS servers, which now prioritize system proxy connections. Learn more by reading: Scan changes and certificates add security for Windows devices using WSUS for updates.
January 27, 2021
12:00 PM PT
January 2021 Windows non-security preview "C" release is available for some versions for Windows 10
The January 2021 monthly "C" release preview updates are now available for Windows 10, version 1909, and Windows 10, version 1809. The preview update for Windows 10, version 20H2 and Windows 10, version 2004 will be available in the near term. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
January 21, 2021
02:00 PM PT
What’s next for Windows release notes
Windows release notes have a new look! Recently we announced that changes would be made to the Windows update history pages and these are now live starting today. These changes include: New appearance, revised URL structure, enhanced search performance, greater ability to share, streamlined metadata and updated file list structure. To read more about these changes please see What’s next for Windows release notes - Microsoft Tech Community. Let us know what you think, click on the "Was this information helpful" response buttons at the bottom of any article to provide feedback.
January 21, 2021
02:00 PM PT
Reminder: DC enforcement mode on by default beginning with the February 9, 2021 updates
Microsoft addressed a Critical RCE vulnerability affecting the Netlogon protocol (CVE-2020-1472) on August 11, 2020.  We are reminding our customers that beginning with the February 9, 2021 Security Update release we will be enabling Domain Controller enforcement mode by default.  This will block vulnerable connections from non-compliant devices.  DC enforcement mode requires that all Windows and non-Windows devices use secure RPC with Netlogon secure channel unless customers have explicitly allowed the account to be vulnerable by adding an exception for the non-compliant device. To read the full blog, see Netlogon Domain Controller Enforcement Mode is enabled by default beginning with the February 9, 2021 Security Update, related to CVE-2020-1472.
January 15, 2021
01:33 PM PT
See what’s new in the latest Windows Insider Preview Builds: 21292 and 21286
Explore the latest features and improvements, which include:
  • Improvements to “news and interests” in the taskbar (a new feature released to a subset of Windows Insiders in the Dev Channel in build 21286)
  • The Windows File Recovery Winter 2020 Update, introducing two simplified modes to enable either fast or thorough system recovery options.
  • Modernized Storage Spaces, allowing you to add and remove disks, employ storage optimization, and manage other storage spaces options via the updated Manage Storage Spaces settings.
  • The ability see a message when microphone permissions have been turned off for the whole system or for all apps, with a link to the microphone privacy settings page.
Want more details? See the announcements on the Windows Insider Blog for Windows 10 Insider Preview Build 21292 and Windows 10 Insider Preview Build 21286. Want to gain access to preview builds and help shape the future of Windows? Join the Windows Insider Program.
January 15, 2021
11:30 AM PT
Take action: January 2021 security update available for all supported versions of Windows
The January 2021 security update release, referred to as our “B” release, is now available for Windows 10, version 20H2 and all supported versions of Windows. We recommend that you install these updates promptly. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. To be informed about the latest updates and releases, follow us on Twitter @WindowsUpdate.
January 12, 2021
10:00 AM PT
Public preview: New Windows update report options in Microsoft Intune
A new set of Windows 10 update monitoring and reporting features is now available in Microsoft Intune! Organizations using the Windows 10 feature updates policy (in public preview) can now send update deployment data to Intune to track update deployment progress. This data is available in the form of two reports:

  • Windows 10 feature updates (organizational) – This report provides per-device update installation status, detailing which devices are installing, have completed, or have errors or other issues installing updates configured via the Windows 10 feature updates policy.
  • Feature update failures (operational) – This report provides details on installation issues encounter by devices configured to get updates via the Windows 10 feature updates policy. It provides information like error codes, where the failure occurred, a description of the issue, and recommended actions to take.
Both reports are available now in public preview. We look forward to your feedback, and we'll have more to share in the future! To learn more, see Feature updates policy and Windows Update compliance reports.
December 09, 2020
01:00 PM PT
Take action: December 2020 security update available for all supported versions of Windows
The December 2020 security update release, referred to as our “B” release, is now available for Windows 10, version 20H2 and all supported versions of Windows. We recommend that you install these updates promptly. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. To be informed about the latest updates and releases, follow us on Twitter @WindowsUpdate.
December 08, 2020
10:00 AM PT
Deploy the December LCU and SSU via one cumulative update
The December 2020 latest cumulative update (LCU) and the December 2020 servicing stack update (SSU) can now be deployed via Windows Server Update Service (WSUS) using our new one cumulative update package. The new package will automatically orchestrate the installation of these updates in the correct order on devices running Windows 10, versions 2004 and later. To learn how to test out this new capability, read the announcement in the Windows IT Pro Blog.
December 08, 2020
10:00 AM PT
Windows 10, version 1903 and Windows Server, version 1903 have reached end of support
All editions of Windows 10, version 1903 and Windows Server, version 1903 have reached end of service. To continue receiving security and quality updates, Microsoft recommends that you update to the latest version of Windows 10 or Windows Server as soon as possible.  
 
For Windows 10 devices that are at, or within several months of reaching end of service, Windows Update will automatically initiate a feature update (with users having the ability to choose a convenient time); keeping those devices supported and receiving the monthly updates that are critical to device security and ecosystem health. For more information on end of service dates for currently supported versions of Windows 10, see the Microsoft Lifecycle Policy search tool.
December 08, 2020
10:00 AM PT
November 2020 Windows "C" preview release for Windows 10, version 20H2 and Windows 10, version 2004 is available
The November 2020 monthly “C” release preview update for Windows 10, version 20H2 and Windows 10, version 2004 is now available. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
November 30, 2020
02:00 PM PT
November 2020 Windows non-security preview "C" release is available for some versions for Windows 10
The November 2020 monthly "C" release preview updates are now available for Windows 10, version 1909, Windows 10, version 1903 and Windows 10, version 1809. The preview update for Windows 10, version 20H2 and Windows 10, version 2004 will be available in the near term. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
November 19, 2020
02:00 PM PT
Out-of-band update for an issue with Kerberos authentication
Updated November 19, 2020
An out-of-band optional update is now available on the Microsoft Update Catalog to address a known issue affecting Kerberos authentication. As part of this issue, ticket renewal and other tasks, such as scheduled tasks and clustering, might fail. This issue only affects Windows Servers, and Windows 10 devices and applications in enterprise environments

We recommend you only install this optional update on Domain Controllers if you are affected by this issue. For more information, see the known issues section for your version of Windows 10 or see the links below.

For instructions on how to install this update for your operating system, see the KB for your OS listed below:
  • Windows Server, version 2004 and Windows Server, version 20H2 (KB4594440) *
  • Windows Server, version 1903 and Windows Server, version 1909 (KB4594443) *
  • Windows Server, version 1809 and Windows Server 2019 (KB4594442)
  • Windows Server, version 1607 and Windows Server 2016 (KB4594441) *
  • Windows Server 2012 R2 (KB4594439)
  • Windows Server 2012 (KB4594438)
* Additional updates were added to the list above. All affected versions of Windows have now been addressed.
November 19, 2020
10:00 AM PT
Timing of December 2020 Windows 10 update releases
For the balance of this calendar year, there will be no preview, non-security “C” releases for Windows 10 during the month of December. The "C" releases normally target the third week of the month. Note: There will be a December "B" security update release, as usual. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer.
November 17, 2020
10:00 AM PT
Office hours: November 19, 2020 - Managing Windows 10 devices and updates
Have questions, need advice, or want help troubleshooting Windows 10 update and endpoint management? Join a group of experts across Windows servicing and endpoint management for office hours on the Microsoft Tech Community, November 19, 2020 from 9:00 a.m. to 10:00 a.m. Pacific Time. Visit http://aka.ms/windows/officehours for more information.
November 16, 2020
01:30 PM PT
Year two: Extended Security Updates for Windows 7 and Windows Server 2008
Support for Windows 7 and Windows Server 2008 ended on January 14, 2020. If your organization has been unable to update devices running these versions of Windows to a currently supported version, the Extended Security Update (ESU) program can help you better protect those devices while you complete your Windows and Windows Server upgrade projects by offering security updates through January 11, 2022. To learn more, see the Windows IT Pro Blog.
November 10, 2020
06:00 PM PT
Take action: November 2020 security update available for all supported versions of Windows
The November 2020 security update release, referred to as our “B” release, is now available for Windows 10, version 20H2 and all supported versions of Windows. We recommend that you install these updates promptly. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. To be informed about the latest updates and releases, follow us on Twitter @WindowsUpdate.
November 10, 2020
10:00 AM PT
Windows 10, version 1809 Home and Pro have reached end of support
Windows 10, version 1809 Home, Pro, Pro for Workstations, and IoT Core editions have reached end of service. For Windows 10 devices that are at, or within several months of reaching end of service, Windows Update will automatically initiate a feature update (with users having the ability to choose a convenient time); keeping those devices supported and receiving the monthly updates that are critical to device security and ecosystem health. For more information on end of service dates for currently supported versions of Windows 10, see the Microsoft Lifecycle Policy search tool.
November 10, 2020
10:00 AM PT
Reminder: End of service for Windows 10, version 1903 - December 8, 2020
On December 8, 2020, all editions of Windows 10, version 1903 and Windows 10 Server, version 1903 will reach end of service. After that date, devices running these editions will no longer receive monthly security and quality updates. To keep you protected and productive, we will soon begin updating devices running Windows 10, version 1903 to Windows 10, version 1909. This update will install like a monthly update, resulting in a far faster update experience.
 
As always, we recommend that you update your devices to the latest version of Windows 10 as soon as possible to ensure that you can take advantage of the latest features and advanced protections from the latest security threats. For more information on end of service dates for currently supported versions of Windows 10, see the Microsoft Lifecycle Policy search tool.
November 09, 2020
10:30 AM PT
Reminder: End of service for Windows 10, version 1809 Home and Pro - November 10, 2020
The Home, Pro, Pro for Workstations, and IoT Core editions for Windows 10, version 1809 will reach end of service on November 10, 2020. After this date, devices running these editions of Windows will no longer receive security updates. We recommend that you update these devices to a supported version as soon as possible to continue to receive monthly quality updates with security and non-security fixes. For more information, see the Windows release information page.
October 30, 2020
04:00 PM PT
Blog: Attacks exploiting Netlogon vulnerability (CVE-2020-1472)
Microsoft has received a small number of reports from customers and others about continued activity exploiting a vulnerability affecting the Netlogon protocol (CVE-2020-1472) which was previously addressed in security updates starting on August 11, 2020. If the original guidance is not applied, the vulnerability could allow an attacker to spoof a domain controller account that could be used to steal domain credentials and take over the domain. To read the full blog, see Attacks exploiting Netlogon vulnerability (CVE-2020-1472).

We have also updated the guidance article and added FAQ questions to How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472.
October 29, 2020
02:07 PM PT
October 2020 Windows preview "C" release for Windows 10, version 20H2 and Windows 10, version 2004 is available
The October 2020 monthly “C” release preview update for Windows 10, version 20H2 and Windows 10, version 2004 is now available. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
October 29, 2020
10:00 AM PT
October 2020 Daylight Saving Time end date change for the Palestinian Authority
Daylight Saving Time (DST) for the Palestinian Authority ended at 01:00 on October 24, 2020 instead of October 31, 2020. We recommend that customers temporarily disable automatic DST adjustments in Windows to reflect the correct local time between October 24, 2020 and October 31, 2020, then re-enable them after 01:00 on October 31, 2020.
October 26, 2020
03:30 PM PT
What are safeguard holds?
Microsoft uses quality and compatibility data to identify issues that might cause a Windows 10 feature update to fail or roll back. When we find an issue, we might apply holds to prevent affected devices from installing the update in order to safeguard them from these experiences. To better understand how safeguard holds work and how to know if your device is affected, see Safeguard holds.
October 23, 2020
01:00 PM PT
Windows 10, version 20H2 is now available
Discover how to get the latest Windows update and learn about improvements and innovations based on user feedback. The October 2020 Update is available initially for devices running Windows 10, version 1903 or later. For more guidance on how to update your device, see How to get the Windows 10 October 2020 Update.
October 20, 2020
10:00 AM PT
What’s new for IT pros in Windows 10, version 20H2
Explore the latest features for IT, learn about availability in commercial channels, and check what is new for common deployment tools with Windows 10, version 20H2. Also learn about updated tools for Windows 10, version 20H2, including the security baseline, administrative templates (ADMX) and Group Policy settings reference. Have questions about managing updates and rolling out Windows 10, version 20H2 to the devices in your organization? Join an upcoming office hours event!
October 20, 2020
10:00 AM PT
October 2020 Windows non-security preview "C" release is available for some versions of Windows 10
The October 2020 monthly "C" release preview updates are now available for Windows 10, version 1909, Windows 10, version 1903 and Windows 10, version 1809. The preview update for Windows 10, version 20H2 and Windows 10, version 2004 will be available in the near term. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
October 20, 2020
10:00 AM PT
Disabling legacy scripting engine JScript in Internet Explorer
To help IT admins provide a more secure browsing experience across their organizations, the October 2020 monthly security updates for Windows and Windows Server introduce an option to block Jscript (Jscript.dll) execution in Internet Explorer 11. For more details and recommended actions, see the Windows IT Pro Blog.
October 13, 2020
04:30 PM PT
Take action: October 2020 security update available for all supported versions of Windows
The October 2020 security update release, referred to as our “B” release, is now available for Windows 10, version 2004 and all supported versions of Windows. We recommend that you install these updates promptly. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. To be informed about the latest updates and releases, follow us on Twitter @WindowsUpdate.
October 13, 2020
10:00 AM PT
Interim guidance on 2020 time zone updates for Fiji
As a result of the October 8th order from the Fijian Government, Daylight Saving Time (DST) in the Republic of Fiji will begin at 02:00 on December 20, 2020 instead of November 8, 2020. For interim guidance on how to manually set the time zone on your device until an update is released for Windows and Windows Server, see the Daylight Saving Time & Time Zone blog.
October 13, 2020
10:00 AM PT
What’s next for Windows release notes
To make it easier for you to find support and troubleshooting resources, you will soon see a number of changes and improvements to Windows release notes, the Windows update history pages, and related informational articles. These changes will make it easier to locate relevant support articles when using a search engine and improve our ability to quickly publish new articles and keep existing articles up to date. There is nothing you need to do to benefit from these improvements; we will begin to roll them out in the coming weeks. For more details, see the Windows IT Pro Blog.
October 07, 2020
10:30 AM PT
Reminder: End of service for Windows 10, version 1709 Enterprise and Education - October 13, 2020
The Enterprise and Education editions for Windows 10, version 1709 will reach end of service on October 13, 2020. After this date, devices running these editions of Windows 10, version 1709 will no longer receive security updates. We recommend that you update these devices to a supported version as soon as possible to continue to receive monthly quality updates with security and non-security fixes. For more information, see the Windows release information page.
October 05, 2020
05:30 PM PT
September 2020 Windows non-security preview "C" release for Windows 10, version 2004 is available
The September 2020 monthly “C” release preview update for Windows 10, version 2004 is now available. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
October 01, 2020
10:00 AM PT
Take Action: Guidance updated for CVE-2020-1472 | Netlogon Elevation of Privilege Vulnerability
On September 28, 2020, the guidance KB article for CVE-2020-1472 has been updated to provide clarity on new questions and reinforce the customer actions to ensure they are protected. Please see, How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472.
September 28, 2020
02:30 PM PT
Migrating and acquiring Windows 10 optional content
Wondering how to best retain "optional" content -- such as Features on Demand (FODs), language packs (LPs), and local experience packs (LXPs) -- during an update? Learn why task sequences and media-based updates may not be enough and what processes you should employ to capture the full set of Windows features and options a user's device may need.
September 24, 2020
05:00 PM PT
Announcing Test Base for Microsoft 365
Formerly known as Update Staging Lab, Test Base for Microsoft 365 features new capabilities that help software vendors test their applications from anywhere, in secure virtual machines running pre-release builds of monthly Windows 10 quality updates and, now, Windows 10 feature updates. Get all the details about this offering, currently in preview, in Announcing Test Base for Microsoft 365.
September 24, 2020
04:30 PM PT
Planning for new capabilities in Windows 10
Get tips to help you tie the benefits of staying up-to-date to real value for your end users and your business leaders. This article outlines the key resources you'll find with each Windows 10 feature update release that will help you identify, validate, and amplify new capabilities in the Windows operating system. It also discusses best practices for end user and support team readiness. For the full story, see Planning for new capabilities in Windows 10.
September 17, 2020
02:00 PM PT
September 2020 Windows non-security preview "C" release is available for some versions of Windows 10
The September 2020 monthly “C” release preview updates are now available for Windows 10, version 1909, Windows 10, version 1903 and Windows 10, version 1809. The preview update for Windows 10, version 2004 will be available in the near term. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
September 16, 2020
10:00 AM PT
Simplifying on-premises deployment of servicing stack updates
To provide a more seamless experience for those managing monthly updates on-premises, servicing stack updates (SSU) and latest cumulative updates (LCU) will be provided together under a single payload to both Windows Server Update Services (WSUS) and Microsoft Catalog. This solution enables IT to deploy a single cumulative monthly update that includes the month’s cumulative fixes and the appropriate servicing stack updates for that month, if applicable. For details on this new experience, see Simplifying on-premises deployment of servicing stack updates.
September 15, 2020
05:00 PM PT
Take action: September 2020 security update available for all supported versions of Windows
The September 2020 security update release, referred to as our “B” release, is now available for Windows 10, version 2004 and all supported versions of Windows. We recommend that you install these updates promptly. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. To be informed about the latest updates and releases, follow us on Twitter @WindowsUpdate.
September 08, 2020
10:00 AM PT
August 2020 Windows non-security preview "C" release for Windows 10, version 2004 is available
The August 2020 monthly “C” release preview update for Windows 10, version 2004 is now available. For more information on the different types of monthly quality updates, see our Windows 10 update servicing cadence primer. Follow @WindowsUpdate for the latest on the availability of this release.
September 03, 2020
02:00 PM PT
Supporting tamper protection through the deprecation of DisableAntiSpyware
Microsoft Defender Antivirus tamper protection is turned on by default for all consumer Windows 10 devices. This feature protects devices from cyber attacks that try to disable built-security solutions, such as antivirus protection, in an attempt to gain access to your data, to install malware, or to otherwise exploit your data, identity, and devices. As Microsoft Defender antivirus automatically turns itself off when it detects another antivirus program, we are removing a legacy registry setting called DisableAntiSpyware. Intended to be used by OEMs and IT admins to disable Microsoft Defender Antivirus for the purpose of deploying another antivirus product during deployment, DisableAntiSpyware is not applicable to consumer devices and will be removed beginning with Microsoft Defender Antimalware platform versions 4.18.2007.8 and higher (see KB4052623 for details). This update will be rolled out to devices running Windows Enterprise E3 and E5 at a future date.
August 31, 2020
11:45 AM PT
Windows 10, version 2004 is now available
Learn how to get the latest update and get details on the overall rollout plan, then explore the latest features for advanced users and small or midsize businesses.
May 27, 2020
10:00 AM PT
What’s new for IT pros in Windows 10, version 2004
Find information about the latest features and servicing improvements, updates for common deployment tools, availability in commercial channels, and answers to frequently asked questions. Need proven tips and best practices on how to deploy Windows 10, version 2004 across your organization whether devices are on premises or being utilized by a remote workforce? See Deploying a new version of Windows 10 in a remote world. Looking for information on what’s new in Windows Server, version 2004? See the Windows Containers blog.
May 27, 2020
10:00 AM PT
Revised end of service date for Windows 10, version 1709
We have been evaluating the public health situation and understand the impact this is having on many of our customers. To help ease one of the many burdens IT teams are facing, based on customer feedback, we are going to delay the scheduled end of service date for the Enterprise, Education, and IoT Enterprise editions of Windows 10, version 1709. This means devices will receive monthly security updates only from May to October. The final security update for these editions of Windows 10, version 1709 will be released on October 13, 2020 instead of April 14, 2020. For details, please see the blog post on Tech Community.
March 19, 2020
09:45 AM PT
Take action: ESU security updates available for Windows 7 SP1, Windows Server 2008 R2 SP1 and Windows Server 2008 SP2
Windows 7 SP1, Windows Server 2008 R2 SP1, and Windows Server 2008 SP2 reached end of support on January 14, 2020. For customers who have purchased Extended Security Updates (ESU), the first monthly ESU security updates are now available. If your organization has not yet been able to complete your transition to Windows 10, Windows Server 2016, or Windows Server 2019 and want to continue to receive security updates for your current version of Windows, you will need to purchase Extended Security Updates. For information on how to do so, please see How to get Extended Security Updates for eligible Windows devices, Windows 7 ESU frequently ask questions, and Windows Server 2008 R2 SP1 and Windows Server 2008 SP2 ESU frequently asked questions.

We recommend ESU customers review the applicable KB article below for prerequisites and other important information you will need to deploy these updates.

The following updates were released today for Windows Server 2008 SP2:
The following updates were released today for Windows 7 SP1 and Windows Server 2008 R2 SP1:
February 11, 2020
08:00 AM PT
Windows 7 has reached end of support
Windows 7 reached end of support on January 14, 2020. If your organization has not yet been able to complete your transition from Windows 7 to Windows 10, and want to continue to receive security updates while you complete your upgrade projects, please read How to get Extended Security Updates for eligible Windows devices. For more information on end of service dates for currently supported versions of Windows 10, see the Windows lifecycle fact sheet.
January 15, 2020
10:00 AM PT
Windows 10, version 1909 now available
Learn how to get Windows 10, version 1909 (the November 2019 Update), and explore how we’ve worked to make this a great experience for all devices, including a new, streamlined (and fast) update experience for devices updating directly from the May 2019 Update.
November 12, 2019
10:00 AM PT
Windows 10, version 1909 delivery options
Learn how devices running Windows 10, version 1903 can update to Windows 10, version 1909 using the same servicing technology used to deliver monthly quality updates, resulting in a single restart and reducing update-related downtime.
November 12, 2019
10:00 AM PT
What’s new for IT pros in Windows 10, version 1909
Explore the latest features for IT, get information about media availability and related tools, and find answers to frequently asked questions.
November 12, 2019
10:00 AM PT
Windows 10, version 1903 rollout begins
The Windows 10 May 2019 Update (Windows 10, version 1903) is available today to commercial customers via Windows Server Update Services (WSUS), Windows Update for Business, and the Volume Licensing Service Center (VLSC)—and to end users who manually select “Check for updates.” We are slowly throttling up availability while we carefully monitor data and feedback.
May 21, 2019
10:00 AM PT
What’s new in Windows Update for Business
We are enhancing and expanding the capabilities of Windows Update for Business to make the move to the cloud even easier. From simplified branch readiness options to better control over deadlines and reboots, read about the enhancements to Windows Update for Business as a part of Windows 10, version 1903.
May 21, 2019
10:00 AM PT
What’s new for businesses and IT pros in Windows 10
Explore the newest capabilities for businesses and IT in the latest feature update in the areas of intelligent security, simplified updates, flexible management, and enhanced productivity.
May 21, 2019
10:00 AM PT