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Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. See a list of known issues that have been resolved for Windows 10, version 21H1 over the last six months.
Looking for a specific issue? After installing KB or later updates, you might be unable to reconnect to Direct Access after temporarily losing network connectivity or transitioning between Wi-Fi networks or access points. Windows devices used at home by consumers or devices in organizations which are not using Direct Access to remotely access the organization's network resources are not affected. Workaround: You can mitigate this issue by restarting your Windows device.
Resolution: This issue was resolved in updates released December 13, KB 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 are using an update released before December 13, , and have this issue, you can resolve it by installing and configuring the special Group Policy listed below.
Important: You will need to install and configure the Group Policy for your version of Windows to resolve this issue. This issue might affect any Kerberos authentication in your environment. Some scenarios which might be affected:.
Note: affected events will have " the missing key has an ID of 1 ":. Note: This issue is not an expected part of the security hardening for Netlogon and Kerberos starting with November security update. You will still need to follow the guidance in these articles even after this issue is resolved.
Windows devices used at home by consumers or devices which are not part of a on premises domain are not affected by this issue. Azure Active Directory environments that are not hybrid and do not have any on premises Active Directory servers are not affected. Resolution: This issue was resolved in out-of-band updates released November 17, and November 18, for installation on all the Domain Controllers DCs in your environment.
You do not need to install any update or make any changes to other servers or client devices in your environment to resolve this issue. If you used any workaround or mitigations for this issue, they are no longer needed, and we recommend you remove them. To get the standalone package for these out-of-band updates, search for the KB number in the Microsoft Update Catalog.
Note The below updates are not available from Windows Update and will not install automatically. Note: You do not need to apply any previous update before installing these cumulative updates. If you have already installed updates released November 8, , you do not need to uninstall the affected updates before installing any later updates including the updates listed above.
Note: If you are using security only updates for these versions of Windows Server, you only need to install these standalone updates for the month of November Security only updates are not cumulative, and you will also need to install all previous Security only updates to be fully up to date.
Monthly rollup updates are cumulative and include security and all quality updates. If you are using Monthly rollup updates, you will need to install both the standalone updates listed above to resolve this issue, and install the Monthly rollups released November 8, to receive the quality updates for November After installing KB or later updates, you might experience an error in which the desktop or taskbar might momentarily disappear, or your device might become unresponsive.
Workaround: If you are unable to use the resolution below, you can mitigate this issue by restarting your Windows device. Please note that it might take up to 24 hours for the resolution to propagate automatically to consumer devices and non-managed business devices.
Restarting your Windows device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue can resolve it by installing and configuring a special Group Policy. After installing KB or later updates, OneDrive might unexpectedly close, and you might receive an error when attempting to do the following:. Resolution: This issue was resolved in the out-of-band update KB It is a cumulative update, so you do not need to apply any previous update before installing it.
Note KB is not available from Windows Update and will not install automatically. Starting at a. Symptoms if no update is installed and the workaround is not used on devices in the Jordan time zone on October 28, or later:. Workaround: You can mitigate this issue on devices in Jordan by doing either of the following on October 28, , if an update is not available to resolve this issue for your version of Windows:. We do NOT recommend using any other workaround, as they can create inconsistent results and might create serious issues if done incorrectly.
Resolution: This issue was resolved in KB Note: KB will not install automatically. To apply this update, you can check for updates and select the optional preview to download and install. Note for developers: Affected connections are likely to be sending multiple frames within a single input buffer, specifically one or more complete records with a partial record that is less than 5 bytes all sent in a single buffer.
If you are experiencing issues, please use feedback hub to file a report following the below steps:. For additional information, see Send feedback to Microsoft with the Feedback Hub app.
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 Cumulative Update Preview for.
For more information on. 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. 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 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. We recommend IT administrators use the Microsoft Update Catalog to download and install updates in their environments.
As always, we recommend the installation of the latest Windows security updates for all devices the October security monthly release, KB , or later. After installing KB , file copies using Group Policy Preferences might fail or might create empty shortcuts or files using 0 zero bytes. Workaround: To mitigate this issue, you can do ONE of the following:.
Installation of KB prevents and resolves this issue but if any workaround was used to mitigate this issue, it will need to be changed back to your original configuration. Saturday, September 10, , the official time in Chile will advance 60 minutes in accordance with the August 9, official announcement by Chilean government about a Daylight Saving Time DST time zone change.
Symptoms if the workaround is not used on devices between September 4, and September 11, Workaround: This issue is now resolved in KB 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, and undoing on September 11, To mitigate this issue in the Santiago time zone, after a.
This can be done by doing either of the following:. We do NOT recommend using any other workaround, as they can create inconsistent results and might create serious issues if not done correctly. Note: If the workaround above was used, it should have been undone on September 11, 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. This issue does not affect most home users. The XPS Viewer is no longer installed by default as of Windows 10, version and must be manually installed. After installing KB or later updates, some Windows devices might have issues with audio not working.
Some affected Windows devices might have no audio, but other affected Windows devices might only have issues on certain ports, certain audio devices or only within certain applications.
Most affected audio devices drivers have the "audio enhancements" setting disabled before installing KB or the sound device driver has issues with the "audio enhancements" feature. Workaround: This issue can be mitigated differently depending on your symptoms and if you have installed the update already.
If you have not yet installed the update, you can do the following to prevent the issue:. If only certain apps are impacted, you can try the following to mitigate the issue:. If you have already installed the update and are experiencing issues with audio on all apps, you can try the following to mitigate the issue:. Note: This KIR will prevent the issue on Windows devices which have not installed KB but will have no effect on devices already affected by this known issue.
After installing updates released on June 28, KB or later updates, the Input Indicator and Language Bar might not appear in the notification area. The notification area is normally located on the right end of the taskbar.
Affected devices have more than one language installed. Resolution: This issue was resolved in updates released August 9, KB and later. It contains important improvements and issues resolutions, including this one. If you are using an update released before August 9, , and have this issue, you can resolve it by installing and configuring the special Group Policy listed below. Important: You will need to install and configure the Group Policy for your version of Windows to resolve this issue on updates released before August 9, Microsoft has received reports of issues affecting some printing devices following installation of Windows updates released June 28 KB and later.
Symptoms observed may include:. Normal printer usage might be interrupted for either scenario, resulting in failure of printing operations. Workaround: Here are some actions you can take, which might help resolve this issue:. Resolution : This issue was resolved in updates released August 9, KB and later. The password cannot be null or empty.
Note: Environments which use non-encrypted PSCredential properties will not experience the issue. DSC is a management platform in PowerShell that enables administrators to manage IT and development infrastructure with configuration as code.
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