This is a summary of the cumulative updates released on 12th May for all the supported consumer releases of Windows 10. Windows 10 version 2004 and version 20H2 - KB5003173, Build 19041.985 and 19042.985 Windows 10 versions 1909 - KB5003169, Build 18363.1556 For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types . To view other notes and messages, see the Windows 10, version 2004 update history home page . NEW 5/12/21 Windows 10, version 1803 and other editions of Windows 10 have reached the end of servicing. Windows 10 release dashboard https://docs.microsoft.com/en-us/windows/release-health/ Windows 10 update history https://support.microsoft.com/en-us/topic/windows-10-update-history-7dd3071a-3906-fa2c-c342-f7f86728a6e3 Windows 10 Lifecycle FAQ Lifecycle FAQ - Windows - Microsoft Lifecycle | Microsoft Docs Windows 10 message center https://docs.microsoft.com/en-us/windows/release-information/windows-message-center#407 Known issues with KB5003173 Symptom Workaround System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated. Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps. If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here . The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment. Note Within the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change before the default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options . We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks. When using the Microsoft Japanese Input Method Editor (IME) to enter Kanji characters in an app that automatically allows the input of Furigana characters, you might not get the correct Furigana characters. You might need to enter the Furigana characters manually. Note The affected apps are using the ImmGetCompositionString() function. We are working on a resolution and will provide an update in an upcoming release. Devices with Windows installations created from custom offline media or custom ISO image might have Microsoft Edge Legacy removed by this update, but not automatically replaced by the new Microsoft Edge. This issue is only encountered when custom offline media or ISO images are created by slipstreaming this update into the image without having first installed the standalone servicing stack update (SSU) released March 29, 2021 or later. Note Devices that connect directly to Windows Update to receive updates are not affected. This includes devices using Windows Update for Business. Any device connecting to Windows Update should always receive the latest versions of the SSU and latest cumulative update (LCU) without any extra steps. To avoid this issue, be sure to first slipstream the SSU released March 29, 2021 or later into the custom offline media or ISO image before slipstreaming the LCU. To do this with the combined SSU and LCU packages now used for Windows 10, version 20H2 and Windows 10, version 2004, you will need to extract the SSU from the combined package. Use the following steps to extract the using SSU: <ol><li>Extract the cab from the msu via this command line (using the package for KB5000842 as an example): expand Windows10.0-KB5000842-x64.msu /f:Windows10.0-KB5000842-x64.cab <destination path></li><li>Extract the SSU from the previously extracted cab via this command line: expand Windows10.0-KB5000842-x64.cab /f:* <destination path></li><li>You will then have the SSU cab, in this example named SSU-19041.903-x64.cab. Slipstream this file into your offline image first, then the LCU.</li></ol> If you have already encountered this issue by installing the OS using affected custom media, you can mitigate it by directly installing the new Microsoft Edge . If you need to broadly deploy the new Microsoft Edge for business, see Download and deploy Microsoft Edge for business A small subset of users have reported lower than expected performance in games after installing this update. Most users affected by this issue are running games full screen or borderless windowed modes and using two or more monitors. This issue is resolved using Known Issue Rollback (KIR) . 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 device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, it can be resolved by installing and configuring a special Group Policy . Note Devices need to be restarted after configuring the special Group Policy. For help, please see How to use Group Policy to deploy a Known Issue Rollback . For general information on using Group Policies, see Group Policy Overview . Known issues with KB5003169 Symptom Workaround System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated. Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps. If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here . The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment. Note Within the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change before the default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options . We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks. Follow @WindowsUpdate to find out when new content is published to the release information dashboard. Important: Users posting replies referring to their own websites would be considered as Spam and would be suspended from this community. (If you have recommended this discussion and are looking for the unsubscribe button, please hit subscribe below, and a dialogue will open with the unsubscribe choice.)

i only wish for operating system options other than dealing with the <removed> at MS and Apple.... They take control of our private systems and hack them and update them without permission and redirect and destroy and move our personal files without any permission from the private owner. These files are our personal property and ms and apple steal, destroy them without any permissions, remorse or especially accountability. They tell us after an update or other piece of **** software that we should have backed up these files.... they destroyed personal property and should be in jail.

I can't uninstall the update, I tried but when computer reboots I got into BSOD again, reboot, recover to couple days ago, need to reboot or shutdown, loop everything again.

I manage to uninstall the updated, what I did to make it show at Installed Updates was: First) Pause updates for 7 days Second) Refresh Installed Updates, now I can see the bug update and uninstall it. Next step for me is reboot and see if that helped, for while.

My laptop got KB5003173 and it took longer than usual for my desktop to load after logging on. When Teams started up all contacts were listed as "status unknown". I then signed out and restarted teams and it said "We're sorry, we ran into an issue". I had to restart Teams again to get it working. Lastly, the icons on the desktop and taskbar flicker from time to time. Are these possible known bugs?

After this update my Windows 10 key has disappeared and changed from version Home to Pro Education. Will i have to manually fix this (if so what are they) or will there be an automatic fix?

Cumulative updates May 2021

Sumit 44,316 Volunteer Moderator

This is a summary of the cumulative updates released on 12th May for all the supported consumer releases of Windows 10.

Windows 10 version 2004 and version 20H2 - KB5003173, Build 19041.985 and 19042.985
Windows 10 versions 1909 - KB5003169, Build 18363.1556

For information about Windows update terminology, see the article about the types of Windows updates and the monthly quality update types. To view other notes and messages, see the Windows 10, version 2004 update history home page.

NEW 5/12/21 Windows 10, version 1803 and other editions of Windows 10 have reached the end of servicing.

Windows 10 release dashboard

https://docs.microsoft.com/en-us/windows/release-health/

Windows 10 update history

https://support.microsoft.com/en-us/topic/windows-10-update-history-7dd3071a-3906-fa2c-c342-f7f86728a6e3

Windows 10 Lifecycle FAQ

Lifecycle FAQ - Windows - Microsoft Lifecycle | Microsoft Docs

Windows 10 message center

https://docs.microsoft.com/en-us/windows/release-information/windows-message-center#407

Known issues with KB5003173

Symptom	Workaround
System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated. <br> <br>NoteDevices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps.	If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here. The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment. NoteWithin the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change beforethe default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options. <br> <br>We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks.
When using the Microsoft Japanese Input Method Editor (IME) to enter Kanji characters in an app that automatically allows the input of Furigana characters, you might not get the correct Furigana characters. You might need to enter the Furigana characters manually. <br> <br>NoteThe affected apps are using the ImmGetCompositionString() function.	We are working on a resolution and will provide an update in an upcoming release.
Devices with Windows installations created from custom offline media or custom ISO image might have Microsoft Edge Legacy removed by this update, but not automatically replaced by the new Microsoft Edge. This issue is only encountered when custom offline media or ISO images are created by slipstreaming this update into the image without having first installed the standalone servicing stack update (SSU) released March 29, 2021 or later. <br> <br>NoteDevices that connect directly to Windows Update to receive updates are not affected. This includes devices using Windows Update for Business. Any device connecting to Windows Update should always receive the latest versions of the SSU and latest cumulative update (LCU) without any extra steps.	To avoid this issue, be sure to first slipstream the SSU released March 29, 2021 or later into the custom offline media or ISO image before slipstreaming the LCU. To do this with the combined SSU and LCU packages now used for Windows 10, version 20H2 and Windows 10, version 2004, you will need to extract the SSU from the combined package. Use the following steps to extract the using SSU: <br> <br><br><ol><li><p>Extract the cab from the msu via this command line (using the package for KB5000842 as an example): <b>expand Windows10.0-KB5000842-x64.msu /f:Windows10.0-KB5000842-x64.cab <destination path></b></p></li><li><p>Extract the SSU from the previously extracted cab via this command line: <b>expand Windows10.0-KB5000842-x64.cab /f:* <destination path></b></p></li><li><p>You will then have the SSU cab, in this example named SSU-19041.903-x64.cab. Slipstream this file into your offline image first, then the LCU.</p></li></ol><br> <br>If you have already encountered this issue by installing the OS using affected custom media, you can mitigate it by directly installing the new Microsoft Edge. If you need to broadly deploy the new Microsoft Edge for business, see Download and deploy Microsoft Edge for business
A small subset of users have reported lower than expected performance in games after installing this update. Most users affected by this issue are running games full screen or borderless windowed modes and using two or more monitors.	This issue is resolved using Known Issue Rollback (KIR). 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 device might help the resolution apply to your device faster. For enterprise-managed devices that have installed an affected update and encountered this issue, it can be resolved by installing and configuring a special Group Policy. <br> <br>Note Devices need to be restarted after configuring the special Group Policy. For help, please see How to use Group Policy to deploy a Known Issue Rollback. For general information on using Group Policies, see Group Policy Overview.

Known issues with KB5003169

Symptom	Workaround
System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated. <br> <br>Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps.	If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here. The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment. NoteWithin the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change beforethe default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options. <br> <br>We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks.

Symptom

Workaround

System and user certificates might be lost when updating a device from Windows 10, version 1809 or later to a later version of Windows 10. Devices will only be impacted if they have already installed any Latest cumulative update (LCU) released September 16, 2020 or later and then proceed to update to a later version of Windows 10 from media or an installation source which does not have an LCU released October 13, 2020 or later integrated. This primarily happens when managed devices are updated using outdated bundles or media through an update management tool such as Windows Server Update Services (WSUS) or Microsoft Endpoint Configuration Manager. This might also happen when using outdated physical media or ISO images that do not have the latest updates integrated. Note Devices using Windows Update for Business or that connect directly to Windows Update are not impacted. Any device connecting to Windows Update should always receive the latest versions of the feature update, including the latest LCU, without any extra steps.

If you have already encountered this issue on your device, you can mitigate it within the uninstall window by going back to your previous version of Windows using the instructions here. The uninstall window might be 10 or 30 days depending on the configuration of your environment and the version you’re updating to. You will then need to update to the later version of Windows 10 after the issue is resolved in your environment. NoteWithin the uninstall window, you can increase the number of days you have to go back to your previous version of Windows 10 by using the DISM command /Set-OSUninstallWindow. You must make this change beforethe default uninstall window has lapsed. For more information, see DISM operating system uninstall command-line options. We are working on a resolution and will provide updated bundles and refreshed media in the coming weeks.

Follow @WindowsUpdate to find out when new content is published to the release information dashboard.

Important: Users posting replies referring to their own websites would be considered as Spam and would be suspended from this community.

(If you have recommended this discussion and are looking for the unsubscribe button, please hit subscribe below, and a dialogue will open with the unsubscribe choice.)

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments

85 answers

Anonymous

2021-05-15T18:37:29+00:00

i only wish for operating system options other than dealing with the <removed> at MS and Apple....

They take control of our private systems and hack them and update them without permission and redirect and destroy and move our personal files without any permission from the private owner. These files are our personal property and ms and apple steal, destroy them without any permissions, remorse or especially accountability.

They tell us after an update or other piece of **** software that we should have backed up these files.... they destroyed personal property and should be in jail.
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Anonymous

2021-05-13T21:54:49+00:00

I can't uninstall the update, I tried but when computer reboots I got into BSOD again, reboot, recover to couple days ago, need to reboot or shutdown, loop everything again.
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2 people found this answer helpful.

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Anonymous

2021-05-13T18:31:33+00:00

I manage to uninstall the updated, what I did to make it show at Installed Updates was:

First) Pause updates for 7 days

Second) Refresh Installed Updates, now I can see the bug update and uninstall it. Next step for me is reboot and see if that helped, for while.
Was this answer helpful?

2 people found this answer helpful.

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Anonymous

2021-05-13T13:48:47+00:00

My laptop got KB5003173 and it took longer than usual for my desktop to load after logging on. When Teams started up all contacts were listed as "status unknown". I then signed out and restarted teams and it said "We're sorry, we ran into an issue". I had to restart Teams again to get it working. Lastly, the icons on the desktop and taskbar flicker from time to time. Are these possible known bugs?
Was this answer helpful?

2 people found this answer helpful.

0 comments No comments
Anonymous

2021-05-13T11:31:54+00:00

After this update my Windows 10 key has disappeared and changed from version Home to Pro Education. Will i have to manually fix this (if so what are they) or will there be an automatic fix?
Was this answer helpful?

2 people found this answer helpful.

0 comments No comments