Windows 10, version 1809 and Windows Server 2019

Find information on known issues for Windows 10, version 1809 and Windows Server 2019. Looking for a specific issue? Press CTRL + F (or Command + F if you are using a Mac) and enter your search term(s).

Current status as of November 12, 2019:
Windows 10, version 1809 is designated for broad deployment. The recommended servicing status is Semi-Annual Channel.

Known issues

This table offers a summary of current active issues and those issues that have been resolved in the last 30 days.

SummaryOriginating updateStatusLast updated
Microsoft Defender Advanced Threat Protection might stop running
The Microsoft Defender ATP service might stop running and might fail to send reporting data.

See details >
OS Build 17763.832

October 15, 2019
KB4520062
Resolved
KB4523205
November 12, 2019
10:00 AM PT
Unable to create local users in Chinese, Japanese and Korean during device setup
You might be unable to create users in Chinese, Japanese and Korean using Input Method Editor (IME) during OOBE.

See details >
OS Build 17763.737

September 10, 2019
KB4512578
Mitigated
November 12, 2019
08:05 AM PT
TLS connections might fail or timeout
Transport Layer Security (TLS) connections might fail or timeout when connecting or attempting a resumption.

See details >
OS Build 17763.805

October 08, 2019
KB4519338
Mitigated External
November 05, 2019
03:36 PM PT
Devices with some Asian language packs installed may receive an error
Devices with Asian language packs installed may receive the error, "0x800f0982 - PSFX_E_MATCHING_COMPONENT_NOT_FOUND."

See details >
OS Build 17763.437

April 09, 2019
KB4493509
Mitigated
May 03, 2019
10:59 AM PT
Certain operations performed on a Cluster Shared Volume may fail
Operations performed on files or folders on a CSV may fail with the error: STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5).

See details >
OS Build 17763.253

January 08, 2019
KB4480116
Mitigated
April 09, 2019
10:00 AM PT

Issue details

November 2019

DetailsOriginating updateStatusHistory
TLS connections might fail or timeout
Updates for Windows released October 8, 2019 or later provide protections, tracked by CVE-2019-1318, against an attack that could allow unauthorized access to information or data within TLS connections. This type of attack is known as a man-in-the-middle exploit. Windows might fail to connect to TLS clients and servers that do not support Extended Master Secret for resumption (RFC 7627). Lack of RFC support might cause one or more of the following errors or logged events:
  • "The request was aborted: Could not create SSL/TLS secure Channel"
  • SCHANNEL event 36887 is logged in the System event log with the description, "A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 20.​"
Affected platforms:
  • Client: Windows 10, version 1903; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803; Windows 10, version 1709; Windows 10, version 1703; Windows 10 Enterprise LTSC 2016; Windows 10, version 1607; Windows 10 Enterprise LTSC 2015; Windows 8.1; Windows 7 SP1
  • Server: Windows Server, version 1903; Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803; Windows Server, version 1709 ; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2

Next Steps: Connections between two devices running any supported version of Windows should not have this issue when fully updated. There is no update for Windows needed for this issue. These changes are required to address a security issue and security compliance. For information, see KB4528489.

Back to top
OS Build 17763.805

October 08, 2019
KB4519338
Mitigated External
Last updated:
November 05, 2019
03:36 PM PT

Opened:
November 05, 2019
03:36 PM PT

October 2019

DetailsOriginating updateStatusHistory
Microsoft Defender Advanced Threat Protection might stop running
After installing the optional non-security update (KB4520062), the Microsoft Defender Advanced Threat Protection (ATP) service might stop running and might fail to send reporting data. You might also receive a 0xc0000409 error in Event Viewer on MsSense.exe.

Note Microsoft Windows Defender Antivirus is not affected by this issue.

Affected platforms:
  • Client: Windows 10, version 1809; Windows 10 Enterprise LTSC 2019
  • Server: Windows Server, version 1809; Windows Server 2019
Resolution: This issue was resolved in KB4523205.

Back to top
OS Build 17763.832

October 15, 2019
KB4520062
Resolved
KB4523205
Resolved:
November 12, 2019
10:00 AM PT

Opened:
October 17, 2019
05:14 PM PT
Unable to create local users in Chinese, Japanese and Korean during device setup
When setting up a new Windows device using the Out of Box Experience (OOBE), you might be unable to create a local user when using Input Method Editor (IME). This issue might affect you if you are using the IME for Chinese, Japanese, or Korean languages.

Note This issue does not affect using a Microsoft Account during OOBE.

Affected platforms:
  • Client: Windows 10, version 1909; Windows 10, version 1903; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803; Windows 10, version 1709
  • Server: Windows Server, version 1909; Windows Server, version 1903; Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803; Windows Server, version 1709
Workaround: To mitigate this issue, set the keyboard language to English during user creation or use a Microsoft Account to complete OOBE. You can set the keyboard language back to your preferred language after user creation. Once the OOBE is done and you are at the desktop, you can rename the current user using these instructions. If you prefer to create a new local user, see KB4026923.

Next steps: We are working on a resolution and will provide an update in an upcoming release.

Back to top
OS Build 17763.737

September 10, 2019
KB4512578
Mitigated
Last updated:
November 12, 2019
08:05 AM PT

Opened:
October 29, 2019
05:15 PM PT

May 2019

DetailsOriginating updateStatusHistory
Devices with some Asian language packs installed may receive an error
After installing the April 2019 Cumulative Update (KB4493509), devices with some Asian language packs installed may receive the error, "0x800f0982 - PSFX_E_MATCHING_COMPONENT_NOT_FOUND."

Affected platforms:
  • Client: Windows 10, version 1809; Windows 10 Enterprise LTSC 2019
  • Server: Windows Server, version 1809; Windows Server 2019
Workaround:
  1. Uninstall and reinstall any recently added language packs. For instructions, see "Manage the input and display language settings in Windows 10".
  2. Click Check for Updates and install the April 2019 Cumulative Update. For instructions, see "Update Windows 10".
Note: If reinstalling the language pack does not mitigate the issue, reset your PC as follows:
    1. Go to Settings app -> Recovery.
    2. Click on Get Started under "Reset this PC" recovery option.
    3. Select "Keep my Files".
Next steps: Microsoft is working on a resolution and will provide an update in an upcoming release.

Back to top
OS Build 17763.437

April 09, 2019
KB4493509
Mitigated
Last updated:
May 03, 2019
10:59 AM PT

Opened:
May 02, 2019
04:36 PM PT

January 2019

DetailsOriginating updateStatusHistory
Certain operations performed on a Cluster Shared Volume may fail
Certain operations, such as rename, that you perform on files or folders that are on a Cluster Shared Volume (CSV) may fail with the error, "STATUS_BAD_IMPERSONATION_LEVEL (0xC00000A5)". This occurs when you perform the operation on a CSV owner node from a process that doesn’t have administrator privilege. 

Affected platforms: 
  • Client: Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10, version 1803; Windows 10, version 1709; Windows 10, version 1703; Windows 10, version 1607; Windows 10 Enterprise LTSC 2016; Windows 10, version 1507; Windows 10 Enterprise LTSB 2015; Windows 8.1
  • Server: Windows Server, version 1809; Windows Server 2019; Windows Server, version 1803; Windows Server, version 1709; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012
Workaround: Do one of the following:  
  • Perform the operation from a process that has administrator privilege. 
  • Perform the operation from a node that doesn’t have CSV ownership. 
Next steps: Microsoft is working on a resolution and will provide an update in an upcoming release.

Back to top
OS Build 17763.253

January 08, 2019
KB4480116
Mitigated
Last updated:
April 09, 2019
10:00 AM PT

Opened:
January 08, 2019
10:00 AM PT