Windows 10, version 21H2

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Current status as of April 15, 2022 (PT)

Windows 10, version 21H2 is designated for broad deployment. 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 details, see How to get the Windows 10 November 2021 Update.

If you are using Windows 10 and want to move to Windows 11, you can check if your device is eligible for the upgrade using the PC Health Check app or checking Windows 11 specs, features, and computer requirements. Note that you also need to be running Windows 10, version 2004 or later, have no safeguard holds applied to your device, and have a Microsoft Account (MSA) if using Home edition.

For more information on the Windows 11 upgrade experience, watch our video, Windows 11 Upgrade Experience.

    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
    Copying files/shortcuts using Group Policy Preferences might not work as expected
    Files or shortcuts might not copy or copy as zero-byte files when using Group Policy Preferences on client devices.
    OS Build 19044.2006
    KB5017308
    2022-09-13
    Confirmed
    2022-09-22
    16:49 PT
    The September 2022 preview release is listed in Windows Server Update Services
    Preview updates are generally made available from the Microsoft Update Catalog and Windows Updates.
    N/A

    Confirmed
    2022-09-22
    14:31 PT
    Possible issues caused by new Daylight Savings Time in Chile
    Chilean government announced a Daylight Saving Time (DST) change for 2022.
    N/A

    Resolved
    KB5017380
    2022-09-20
    10:00 PT
    XPS documents with non-English language characters might not open
    XPS Viewer might be unable to open files with some non-English languages, including Japanese and Chinese.
    OS Build 19044.1806
    KB5014666
    2022-06-28
    Resolved
    KB5017380
    2022-09-20
    10:00 PT
    Update might fail to install and you might receive a 0x800f0922 error
    Security update for Secure Boot DBX might fail to install.
    OS Build 19044.1880
    KB5012170
    2022-08-09
    Investigating
    2022-09-20
    10:06 PT
    IE mode tabs in Microsoft Edge might stop responding
    When a site is viewed in IE mode in Edge and the site uses certain calls, all IE mode tabs might stop responding.
    OS Build 19044.1741
    KB5014023
    2022-06-02
    Resolved
    KB5016688
    2022-08-26
    14:00 PT

    Issue details

    September 2022

    Copying files/shortcuts using Group Policy Preferences might not work as expected

    StatusOriginating updateHistory
    ConfirmedOS Build 19044.2006
    KB5017308
    2022-09-13
    Last updated: 2022-09-22, 16:49 PT
    Opened: 2022-09-22, 15:23 PT

    After installing KB5017308, file copies using Group Policy Preferences might fail or might create empty shortcuts or files using 0 (zero) bytes. Known affected Group Policy Objects are related to files and shortcuts in User Configuration -> Preferences -> Windows Settings in Group Policy Editor.

    Workaround: To mitigate this issue, you can do ONE of the following:

    • ​Uncheck the "Run in logged-on user's security context (user policy option)". Note: This might not mitigate the issue for items using a wildcard (*).
    • ​Within the affected Group Policy, change "Action" from "Replace" to "Update".
    • ​If a wildcard (*) is used in the location or destination, deleting the trailing "\" (backslash, without quotes) from the destination might allow the copy to be successful.

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

    Affected platforms:

    • ​Client: Windows 11, version 22H2; Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10 Enterprise 2015 LTSB; Windows 8.1
    • ​Server: Windows Server 2022; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2

    The September 2022 preview release is listed in Windows Server Update Services

    StatusOriginating updateHistory
    ConfirmedN/A

    Last updated: 2022-09-22, 14:31 PT
    Opened: 2022-09-22, 10:51 PT

    IT administrators who utilize Windows Server Update Services (WSUS) might notice that the Windows September 2022 preview update, known as the 'C' release, is listed among the updates available from WSUS. This listing is an error. Preview updates are generally available for manual importing via the Microsoft Update Catalog and Windows Updates.

    This issue might also affect the installation of the September 2022 Cumulative Update Preview for .NET Framework, which is also generally available via Windows Update and Microsoft Update Catalog. For more information on .NET Framework September 2022 Cumulative Update Preview updates, see the KB articles listed on the .NET blog for the September 2022 Cumulative Update Preview.

    Home users of Windows are unlikely to experience this issue. WSUS is commonly utilized by technology administrators to deploy Microsoft product updates in managed environments. 

    Workaround: The Windows September 2022 preview release was made available via Microsoft Update Catalog. We recommend IT administrators to use this release channel moving forward.

    Please note: In environments where WSUS is configured to auto-approve updates and also auto-decline superseded content, the Windows September 2022 Security update may subsequently be auto-declined and auto-expired from the client view. If this occurs, see the guidance for reinstating declined updates. Then run an update synchronization within Microsoft Endpoint Configuration Manager, or update management environments. Environments configured to only take security updates should not reflect these symptoms.

    Next steps: The Windows September 2022 preview release is being removed from WSUS and we are working on a resolution to support customers who had imported updates via WSUS inadvertently. We estimate a solution will be available in the coming days.

    Affected platforms:

    • ​Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 11, version 21H1; Windows 10, version 20H2; Windows 10, version 1809
    • ​Server: Windows Server 2022; Windows Server, version 20H2; Windows Server, version 1809

    Possible issues caused by new Daylight Savings Time in Chile

    StatusOriginating updateHistory
    Resolved KB5017380N/A

    Resolved: 2022-09-20, 10:00 PT
    Opened: 2022-09-02, 13:17 PT

    Starting at 12:00 a.m. Saturday, September 10, 2022, the official time in Chile will advance 60 minutes in accordance with the August 9, 2022 official announcement by Chilean government about a Daylight Saving Time (DST) time zone change. This moves the DST change which was previously September 4 to September 10.

    Symptoms if the workaround is not used on devices between September 4, 2022 and September 11, 2022:

    • ​Time shown in Windows and apps will not be correct.
    • ​Apps and cloud services which use date and time for integral functions, such as Microsoft Teams and Microsoft Outlook, notifications and scheduling of meetings might be 60 minutes off.
    • ​Automation using date and time, such as Scheduled tasks, might not run at the expected time.
    • ​Timestamp on transactions, files, and logs will be 60 minutes off.
    • ​Operations that rely on time-dependent protocols such as Kerberos might cause authentication failures when attempting to logon or access resources.
    • ​Windows devices and apps outside of Chile might also be affected if they are connecting to servers or devices in Chile or if they are scheduling or attending meetings taking place in Chile from another location or time zone. Windows devices outside of Chile should not use the workaround, as it would change their local time on the device.

    Workaround: This issue is now resolved in KB5017380 but you should undo the workaround, if it is still being used.

    You can mitigate this issue on devices in Chile by doing either of the following on September 4, 2022 and undoing on September 11, 2022:

    • ​Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to Off.
    • ​Go to Control Panel Clock and Region Date and Time Change time zone and uncheck the option for “Automatically adjust clock for Daylight Saving Time”.

    To mitigate this issue in the Santiago time zone, after 12:00 a.m. on September 11, 2022, and for those in the Easter Islands time zone, after 10:00 p.m. on September 10, 2022, follow the steps below to re-enable automatic DST adjustments and ensure accurate time switching with future DST transitions. This can be done by doing either of the following:

    • ​Select the Windows logo key, type "Date and time", and select Date and time settings. From the Date & time settings page, toggle Adjust for daylight saving time automatically to On.
    • ​Go to Control Panel Clock and Region Date and Time Change time zone and check the option for “Automatically adjust clock for Daylight Saving Time”.

    Important: We recommend using ONLY the above workaround to mitigate the issue with time created by the new Daylight Savings Time in Chile. We do NOT recommend using any other workaround, as they can create inconsistent results and might create serious issues if not done correctly.

    Resolution: This issue was resolved in KB5017380. Note: If the workaround above was used, it should have been undone on September 11, 2022. Installation of KB5017380 will not change the "Automatically adjust clock for Daylight Saving Time" setting.

    Affected platforms:

    • ​Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10 Enterprise 2015 LTSB; Windows 8.1; Windows 7 SP1
    • ​Server: Windows Server 2022; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012; Windows Server 2008 R2 SP1; Windows Server 2008 SP2

    August 2022

    XPS documents with non-English language characters might not open

    StatusOriginating updateHistory
    Resolved KB5017380OS Build 19044.1806
    KB5014666
    2022-06-28
    Resolved: 2022-09-20, 10:00 PT
    Opened: 2022-08-08, 17:58 PT

    After installing KB5014666 or later updates, XPS Viewer might be unable to open XML Paper Specification (XPS) documents in some non-English languages, including some Japanese and Chinese character encodings. This issue affects both XML Paper Specification (XPS) and Open XML Paper Specification (OXPS) files. When encountering this issue, you may receive an error, "This page cannot be displayed" within XPS Viewer or it might stop responding and have high CPU usage with continually increasing memory usage. When the error is encountered, if XPS Viewer is not closed it might reach up to 2.5GB of memory usage before closing unexpectedly.

    This issue does not affect most home users. The XPS Viewer is no longer installed by default as of Windows 10, version 1803 and must be manually installed.

    Resolution: This issue was resolved in KB5017380.

    Affected platforms:

    • ​Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2
    • ​Server: Windows Server, version 20H2

    Update might fail to install and you might receive a 0x800f0922 error

    StatusOriginating updateHistory
    InvestigatingOS Build 19044.1880
    KB5012170
    2022-08-09
    Last updated: 2022-09-20, 10:06 PT
    Opened: 2022-08-12, 17:08 PT

    When attempting to install KB5012170, it might fail to install, and you might receive an error 0x800f0922.

    Note: This issue only affects the Security update for Secure Boot DBX ( KB5012170) and does not affect the latest cumulative security updates, monthly rollups, or security only updates released on August 9, 2022.

    Workaround: This issue can be mitigated on some devices by updating the UEFI bios to the latest version before attempting to install KB5012170.

    Next steps: We are presently investigating and will provide an update in an upcoming release.

    Affected platforms:

    • ​Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10 Enterprise 2015 LTSB; Windows 8.1
    • ​Server: Windows Server 2022; Windows Server, version 20H2; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012

    June 2022

    IE mode tabs in Microsoft Edge might stop responding

    StatusOriginating updateHistory
    Resolved KB5016688OS Build 19044.1741
    KB5014023
    2022-06-02
    Resolved: 2022-08-26, 14:00 PT
    Opened: 2022-06-24, 19:21 PT

    After installing KB5014023 and later updates, IE mode tabs in Microsoft Edge might stop responding when a site displays a modal dialog box. A modal dialog box is a form or dialog box which requires the user to respond before continuing or interacting with other portions of the webpage or app. Developer Note: Sites affected by this issue call window.focus.

    Resolution: This issue was resolved in updates released August 26, 2022 ( KB5016688) and later. We recommend you install the latest security update for your device. It contains important improvements and issue resolutions, including this one. If you install an update released August 26, 2022 ( KB5016688) or later, you do not need to use a Known Issue Rollback (KIR) or a special Group Policy to resolve this issue. If you are using an update released before August 26, 2022, and have this issue, you can resolve it by installing and configuring the special Group Policy listed below. The special Group Policy can be found in Computer Configuration -> Administrative Templates -> <Group policy name in below list>. For information on deploying and configuring these special Group Policy, please see How to use Group Policy to deploy a Known Issue Rollback.

    Group Policy downloads with Group Policy name:

    Important: You will need to install and configure the Group Policy for your version of Windows to resolve this issue.

    Affected platforms:

    • ​Client: Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2
    • ​Server: Windows Server 2022