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Windows 10, version 2004 is now available Windows 10, version 2004 is now available
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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
TLS 1.0 and TLS 1.1 support discontinued on packages.microsoft.com
Microsoft builds and supports a variety of software products for Linux systems and makes them available via package repositories on packages.microsoft.com. To support modern security standards, packages.microsoft.com will discontinue support for package downloads over Transport Layer Security (TLS) 1.0 and 1.1 protocols as of September 24, 2020. This means that any connection using these protocols will no longer work as expected, and no support will be provided. In order to continue to access packages from packages.microsoft.com after that date, organizations will need to enable TLS 1.2 (or a later version). Where possible, Microsoft recommends that organizations remove all TLS 1.0 and 1.1 dependencies in their environments and disable TLS 1.0/1.1 at the operating system level.
August 27, 2020
11:30 AM PT
Revised end of service date for Windows 10, version 1803: May 11, 2021
To help organizations focus on business continuity in the midst of the global pandemic, security updates for the Enterprise, Education, and IoT Enterprise editions of Windows 10, version 1803 will continue to be released monthly until May 11, 2021. To remain supported after this date, we recommend that you update your devices to the latest version of Windows 10.
August 26, 2020
10:00 AM PT
Windows 10, version 20H2 available for commercial pre-release validation
Commercial customers looking to explore and validate the next Windows 10 feature update prior to general availability can now do so. If your organization receives updates directly from Windows Update, or has devices enrolled in the Windows Insider Program Beta or Release Preview Channels for validation purposes, you don’t need to take any action. Windows 10, version 20H2 will automatically be deployed to these devices via an enablement package. For details on other options, see Windows 10, version 20H2 available for commercial pre-release validation.
August 21, 2020
12:00 PM PT
August 2020 Windows non-security preview "C" release is available for some versions for Windows 10
The August 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.
August 20, 2020
02:00 PM PT
Take action: August 19, 2020 Windows 8.1 and Windows Server 2012 R2 out of band security update available
An out of band security update has been released for Windows 8.1 and Windows Server 2012 R2. This update addresses two Windows Remote Access Elevation of Privilege vulnerabilities. We recommend that you install these updates promptly. For information about the update, see KB4578013. For more information about these vulnerabilities, see CVE-2020-1530 and CVE-2020-1537.

Note These vulnerabilities were already addressed for all other supported OSes in the August 11, 2020 release.
August 19, 2020
10:00 AM PT
Plan for change: Microsoft 365 apps and services will no longer support Internet Explorer 11 or Microsoft Edge Legacy
By this time next year, Microsoft 365 apps and services will no longer support Internet Explorer 11 (IE11) or Microsoft Edge Legacy. While we know this change will be difficult for some customers, we believe that customers will get the most out of Microsoft 365 when using a modern browser like the new Microsoft Edge. Also note, while you should no longer access Microsoft 365 apps and services using IE 11, we want to be clear that IE 11 isn’t going away and it will continues to be available for use with any of your web apps that require it. For details on the phased deprecation of support, see Microsoft 365 apps say farewell to Internet Explorer 11 and Windows 10 sunsets Microsoft Edge Legacy.
August 17, 2020
10:00 AM PT
Prioritize investments in tools to accelerate Windows deployment
A pilot deployment of a new Windows feature update can provide time-saving insights that help ensure your broad deployment goes smoothly. Read about the tools available to assist with this and other update processes optimizations in Prioritize investments in tools to accelerate Windows deployment.
August 14, 2020
02:30 PM PT
Improving the update discoverability experience
Microsoft has made it easier to discover Windows 10 feature updates, monthly non-security quality updates, and driver updates available to you. Learn about the new Windows Settings view in the August 2020 update, in Improving the update discoverability experience.
August 14, 2020
02:30 PM PT
Security best practices for Windows Server Update Services (WSUS)
If you're using servers to distribute Windows updates through Windows Server Update Services (WSUS), Microsoft recommends using HTTPS to help protect your systems from potential malware attacks. Read about the steps to configure WSUS to use HTTPS, including details on how to apply the necessary certificates, in Security best practices for Windows Server Update Services (WSUS).
August 14, 2020
02:30 PM PT
Take action: August 2020 security update available for all supported versions of Windows
The August 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.
August 11, 2020
10:00 AM PT
Elevation of Privilege Vulnerability for Netlogon (CVE-2020-1472)
On August 11, 2020, Microsoft released a security update to address a privately reported Elevation of Privilege (EoP) security vulnerability that affects Netlogon. This vulnerability applies to domain controllers running Windows Server 2008 R2 SP1 and later. This vulnerability might also affect third party software and devices that implement Netlogon Remote Protocol [MS-NRPC] used for user and machine authentication by domain-joined devices. Microsoft is addressing the vulnerability in a phased two-part rollout starting with the updates released on August 11, 2020.

We recommend that you apply the updates with priority that address CVE-2020-1472 to all of your Windows Server being used as Active Directory domain controllers. Here is what you need to know:
  • If you are running a supported version of Windows Server 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 servers as soon as possible.
  • You will need to monitor your Domain Controllers for events related to non-compliant devices. These devices will need to be addressed before the Q1 2021 DC enforcement phase or risk devices being denied access. For more information, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472.
If you are running an unsupported version of Windows Server, we recommend that you upgrade to the current version of Windows Server to benefit from the latest security protections. 

For more information about this vulnerability, see CVE-2020-1472 | Netlogon Elevation of Privilege Vulnerability.
August 11, 2020
10:00 AM PT
July 2020 Windows "C" optional release for Windows 10, version 2004 is available
The July 2020 optional monthly “C” release 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.
July 31, 2020
10:00 AM PT
SHA-1 Windows content to be retired August 3, 2020
To support evolving industry security standards, and continue to keep you protected and productive, Microsoft will retire content that is Windows-signed for Secure Hash Algorithm 1 (SHA-1) from the Microsoft Download Center on August 3, 2020. This is the next step in our continued efforts to adopt Secure Hash Algorithm 2 (SHA-2), which better meets modern security requirements and offers added protections from common attack vectors. For more information see SHA-1 Windows content to be retired August 3, 2020.
July 28, 2020
05:48 PM PT
Explore and validate Windows 10 builds with Windows Insider Channels
Find out how to utilize the Windows Insider Program as an IT admin and how best to utilize the new Windows Insider Channels to validate the apps and hardware used across your organization
July 23, 2020
03:30 PM PT
July 2020 Windows non-security preview "C" release is available for some versions for Windows 10
The July 2020 monthly “C” release preview updates are now available for Windows 10, version 1809, Windows Server 2019, Windows 10, version 1903 and Windows 10, version 1909. 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.
July 21, 2020
02:00 PM PT
Take action: July 2020 security update available for all supported versions of Windows
The July 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.
July 14, 2020
10:00 AM PT
Advisory: Remote Code Execution security vulnerability affects Windows DNS servers (CVE-2020-1350)
On July 14, 2020, Microsoft released security updates to address a privately reported Remote Code Execution (RCE) security vulnerability that affects Windows DNS servers. This vulnerability applies to all versions of the Windows Server and is addressed in the normal monthly security update release.

While we have not observed an attack exploiting this vulnerability, we recommend that you apply this update that address CVE-2020-1350 to all of your Windows Server devices with priority. If that is not possible, then deploying the workaround detailed in KB4569509: Guidance for DNS Server Vulnerability CVE-2020-1350 is recommended until you are able to install the update. Here is what you need to know:
  • If you are running a supported version of Windows Server 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 servers as soon as possible.
If you are running an unsupported version of Windows Server, we recommend that you upgrade to the current version of Windows Server to benefit from the latest security protections. 

For more information about this vulnerability, see the Microsoft Security Response Center blog, July 2020 Security Update: CVE-2020-1350 Vulnerability in Windows DNS (Domain Name System) Server.
July 14, 2020
10:00 AM PT
Simplified Windows Update settings for end users
In Windows 10, version 2004, we removed two Windows Update settings advanced options that enabled you to defer feature updates and/or quality updates by a specific number of days. This change enables those running premium editions of Windows 10 (e.g. Pro, Enterprise, Education) to remain on a given Windows 10 release for a longer period of time. For more information, see Simplified Windows Update settings for end users.
June 30, 2020
10:00 AM PT
Resuming optional Windows 10 and Windows Server non-security monthly updates
In March, we announced that we would pause optional non-security update releases (also referred to as "C" and "D" releases) for all supported versions of Windows client and Windows Server to give organizations time to focus on business continuity in the face of the global pandemic. Based on your feedback and the increase in standard business operations, we will resume optional releases beginning in July 2020 for Windows 10, version 1809 and Windows Server, version 1809 and later. This will, once again, provide you with validated, production-quality “Preview” releases that you can use to test planned non-security fixes targeted for the next month’s Update Tuesday (or "B") release.

We are also instituting a few changes to simplify the update process and help you continue to stay current with Windows 10 and Windows Server. For more information on these changes, see the Windows IT Pro Blog. There is no change to the cumulative monthly security updates (also referred to as the "B" or Update Tuesday release). These releases will continue to contain all previous updates to keep your users protected and productive.  
June 17, 2020
10:00 AM PT
Roll out updates faster with the Update Baseline for Windows 10
Download recommended configuration settings plus guidance on customizing those settings to meet your organization’s unique needs and implementing strategies to help you increase update velocity. See the Windows IT Pro Blog post for more information.
June 16, 2020
02:30 PM PT
What’s next for Windows 10 updates
Learn about the next feature update, Windows 10, version 20H2, which is targeted for release later in the second half of this year and will be delivered in an optimized way for anyone running the Windows 10 May 2020 Update. Get an overview of our plans for this next release and find out how you can leverage the Windows Insider Program to preview the latest features today.
June 16, 2020
02:30 PM PT
Out-of-band update for an issue in which certain printers may be unable to print after installing updates released June
An out-of-band optional update is now available on the Microsoft Update Catalog to address a known issue in which certain printers may be unable to print after installing updates released June 9, 2020.

We recommend you only install this optional update 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:

Updated June 18, 2020 Additional updates were added to the list above. All affected versions of Windows have now been addressed.
June 16, 2020
10:00 AM PT
Take action: June 2020 security update available for all supported versions of Windows
The June 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
 
June 09, 2020
10:00 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
Take action: May 2020 security update available for all supported versions of Windows
The May 2020 security update release, referred to as our “B” release, is now available for Windows 10, version 1909 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.
May 12, 2020
09:45 AM PT
April 2020 Windows "C" optional release is available
The April 2020 optional monthly “C” release for all supported versions of Windows prior to Windows 10, version 1909 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. Note For information on optional updates starting May 2020, see Timing for upcoming Windows optional C and D releases.
April 21, 2020
10:00 AM PT
Quickly find details on monthly updates for Windows Server containers
As part of our monthly servicing cadence, we publish updated Windows Server Base OS container images. Since Windows Server containers don't have a servicing stack like Windows Server or Windows client, in-place updates cannot be used for containers. It is, therefore, recommended that you leverage the monthly updates to automate the creation of updated container images or manually update your existing images. Bookmark the new Windows Server container update history page to access the latest updates.
April 14, 2020
10:00 AM PT
Take action: April 2020 security update available for all supported versions of Windows
The April 2020 security update release, referred to as our “B” release, is now available for Windows 10, version 1909 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.
April 14, 2020
09:45 AM PT
Revised end of service date for Windows 10, version 1809
We have been evaluating the public health situation and understand the impact this is having on many of our customers. To help ease some of the burdens customers are facing, we are going to delay the scheduled end of service date for the Home, Pro, Pro Education, Pro for Workstations, and IoT Core editions of Windows 10, version 1809 to November 10, 2020. This means devices will receive monthly security updates only from June to November. The final security update for these editions of Windows 10, version 1809 will be released on November 10, 2020 instead of May 12, 2020. For more information, see Windows lifecycle fact sheet and Lifecycle changes to end of support and servicing dates.
April 14, 2020
08:45 AM PT
Out-of-band update for internet connectivity issues on devices with manual or auto-configured proxies including VPNs
An out-of-band optional update is now available on the Microsoft Update Catalog to address a known issue whereby devices using a proxy, especially those using a virtual private network (VPN), might show limited or no internet connection status.

We recommend you only install this optional update 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, all of which were released March 30, 2020:
March 30, 2020
01:45 PM PT
Timing for upcoming Windows optional C and D releases
We have been evaluating the public health situation, and we understand this is impacting our customers. In response to these challenges we are prioritizing our focus on security updates. Starting in May 2020, we are pausing all optional non-security releases (C and D updates) for all supported versions of Windows client and server products (Windows 10, version 1909 down through Windows Server 2008 SP2).

There is no change to the monthly security updates (B release – Update Tuesday); these will continue as planned to ensure business continuity and to keep our customers protected and productive.
March 24, 2020
09:45 AM PT
March 2020 Windows 10, version 1909 and Windows 10, version 1903 "D" optional release is available
The March 2020 optional monthly “D” release for Windows 10, version 1909 and Windows 10, version 1903 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.
March 24, 2020
09:45 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
January 2020 Windows "C" optional release is available.
The January 2020 optional monthly “C” release for all supported versions of Windows 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.
January 23, 2020
12:00 PM 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