Microsoft Windows Server | WI560601

Impact: You might receive an error or files might intermittently fail to save or copy, especially to network shares. Originating KB URL: https://support.microsoft.com/en-us/topic/5023773 Originating KB Release Date: 2023-03-21T14:00:00-07:00 Originating Build: 19045.2788 Resolved KB URL: https://support.microsoft.com/en-us/topic/5027215 Date Resolved: 2023-06-13T10:00:00-07:00 Vendor Message History: ======================= Published: 2023-06-20T20:11:50.877+00:00 ---------------------------------------- After installing KB5023773 (https://support.microsoft.com/help/5023773) or later updates, you might have intermittent issues saving, or copying, or attaching files using 32-bit apps which are large address aware (https://learn.microsoft.com/windows/win32/memory/memory-limits-for-windows-releases#memory-and-address-space-limits) and using the CopyFile API (https://learn.microsoft.com/windows/win32/api/winbase/nf-winbase-copyfile). Windows devices are more likely to be affected by this issue when using some commercial/enterprise security software which uses extended file attributes. We are not receiving reports that copying files using File Explorer is affected, but CopyFile API (https://learn.microsoft.com/windows/win32/api/winbase/nf-winbase-copyfile) used within apps might be affected. Microsoft Office apps such as Microsoft Word or Microsoft Excel are only affected when using 32-bit versions and you might receive the error, "Document not saved." This issue is unlikely to be experienced by consumers using Windows devices in their home or on non-managed comercial device. Note: Apps are not affected by this issue if they are 64-bit or 32-bit and NOT large address aware (https://learn.microsoft.com/windows/win32/memory/memory-limits-for-windows-releases#memory-and-address-space-limits). Workaround: To mitigate the issue, you can attempt to save or copy again. Since the issue is intermittent, it is likely to succeed on a subsequent try. Important: If the resolution below does not resolve intermittent save or copy issues in your environment, then you might be experiencing a different issue with similar symptoms. Resolution: This issue was resolved in updates released June 13, 2023 (KB5027215 (https://support.microsoft.com/help/5027215)) 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 June 13, 2023 or later, you do not need to use a Known Issue Rollback (KIR) (https://techcommunity.microsoft.com/t5/windows-it-pro-blog/known-issue-rollback-helping-you-keep-windows-devices-protected/ba-p/2176831) or a special Group Policy to resolve this issue. If you are using an update released before June 13, 2023, and have this issue, you can resolve it by installing and configuring the special Group Policy listed below. Enterprise-managed devices that have installed an affected update and have encountered this issue can resolve it by installing and configuring a special Group Policy. The special Group Policy can be found in Computer Configuration -> Administrative Templates -> <Group Policy name listed below>. For information on deploying and configuring these special Group Policy, please see How to use Group Policy to deploy a Known Issue Rollback (https://docs.microsoft.com/troubleshoot/windows-client/group-policy/use-group-policy-to-deploy-known-issue-rollback). Group Policy downloads with Group Policy name: - Download for Windows 11, version 21H2 (https://download.microsoft.com/download/1/7/b/17bbeaed-45bd-4b4d-9c4d-2c7a8bf6dbe4/Windows%2011%20(original%20release)%20KB5023774%20230222_032017%20Known%20Issue%20Rollback.msi) - KB5023774 230222_032017 Known Issue Rollback - Download for Windows 10, version 22H2; Windows 10, version 21H2 (https://download.microsoft.com/download/6/2/6/6269d3a4-1d34-4f9f-8b9a-379cfb6e9b2a/Windows%2010%2020H2,%2021H1,%2021H2%20and%2022H2%20KB5023773%20230222_032013%20Known%20Issue%20Rollback.msi) - KB5023773 230222_032013 Known Issue Rollback 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 22H2; Windows 10, version 22H2; Windows 11, version 21H2; Windows 10, version 21H2 - Server: None Published: 2023-05-24T17:35:24.357+00:00 ---------------------------------------- After installing KB5023773 (https://support.microsoft.com/help/5023773) or later updates, you might have intermittent issues saving, or copying, or attaching files using 32-bit apps which are large address aware (https://learn.microsoft.com/windows/win32/memory/memory-limits-for-windows-releases#memory-and-address-space-limits) and using the CopyFile API (https://learn.microsoft.com/windows/win32/api/winbase/nf-winbase-copyfile). Windows devices are more likely to be affected by this issue when using some commercial/enterprise security software which uses extended file attributes. We are not receiving reports that copying files using File Explorer is affected, but CopyFile API (https://learn.microsoft.com/windows/win32/api/winbase/nf-winbase-copyfile) used within apps might be affected. Microsoft Office apps such as Microsoft Word or Microsoft Excel are only affected when using 32-bit versions and you might receive the error, "Document not saved." This issue is unlikely to be experienced by consumers using Windows devices in their home or on non-managed comercial device. Note: Apps are not affected by this issue if they are 64-bit or 32-bit and NOT large address aware (https://learn.microsoft.com/windows/win32/memory/memory-limits-for-windows-releases#memory-and-address-space-limits). Workaround: To mitigate the issue, you can attempt to save or copy again. Since the issue is intermittent, it is likely to succeed on a subsequent try. Important: If the resolution below does not resolve intermittent save or copy issues in your environment, then you might be experiencing a different issue with similar symptoms. Resolution: This issue is resolved using Known Issue Rollback (KIR) (https://techcommunity.microsoft.com/t5/windows-it-pro-blog/known-issue-rollback-helping-you-keep-windows-devices-protected/ba-p/2176831). Enterprise-managed devices that have installed an affected update and have encountered this issue can resolve it by installing and configuring a special Group Policy. The special Group Policy can be found in Computer Configuration -> Administrative Templates -> <Group Policy name listed below>. For information on deploying and configuring these special Group Policy, please see How to use Group Policy to deploy a Known Issue Rollback (https://docs.microsoft.com/troubleshoot/windows-client/group-policy/use-group-policy-to-deploy-known-issue-rollback). Group Policy downloads with Group Policy name: - Download for Windows 11, version 21H2 (https://download.microsoft.com/download/1/7/b/17bbeaed-45bd-4b4d-9c4d-2c7a8bf6dbe4/Windows%2011%20(original%20release)%20KB5023774%20230222_032017%20Known%20Issue%20Rollback.msi) - KB5023774 230222_032017 Known Issue Rollback - Download for Windows 10, version 22H2; Windows 10, version 21H2 (https://download.microsoft.com/download/6/2/6/6269d3a4-1d34-4f9f-8b9a-379cfb6e9b2a/Windows%2010%2020H2,%2021H1,%2021H2%20and%2022H2%20KB5023773%20230222_032013%20Known%20Issue%20Rollback.msi) - KB5023773 230222_032013 Known Issue Rollback 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 22H2; Windows 10, version 22H2; Windows 11, version 21H2; Windows 10, version 21H2 - Server: None