This error may appear anytime a Windows Update fails. To investigate possible solutions, we need to start with the specific error code. We can do this by viewing your update history. Swipe in from the right edge of the screen (or, if you're using a mouse, pointing to the lower-right corner of the screen and moving the mouse pointer up), and tap or click Settings . Tap or click Change PC settings , and then Update and recovery . Tap or click View your update history . View failed update error code. Please post here with your error code, so that the Community can try to help guide you appropriately.

Installation Failure: Windows failed to install the following update with error 0x80070091: Security update for Windows Kb4038788 I have tried the following to fix the issue : 1. Wiundows 10 Update troubleshooter 2. SFC /scannow 3. Repair or reinstalled windows store component thru DISM cmds. 4. Renamed or delete the Windows Upadte Cache (SoftwareDistribution Folder). 5. Even tried chkdsk /f /x cmds... 6. Lastly tried to download kb4038788 x64 cumulative update from MS Update Catalog, it failed also... All of these still it won't install, probably it wants to do a full clean install... I'm running windows 10 home edition with the creator's update.

I'm having the same issue, trying to install the KB2919355 update and it will tell me to restart, which I do, and then it says couldn't complete the updates undoing changes and that literally takes hours. I've tried almost a dozen times to get this update to install, but it refuses, I'm at my wits end with it. It says I have not tried to install updates so it doesn't give me any error codes. Only the couldn't complete the updates every time I try. I'd like some help figuring and fixing this.

when i was updating the windows some programs are not installed and it pops up as KB2899189 and other error as KB2850036, pls fix this issue and let me know that my updates are working properly with our any error

2017-09 Cumulative Update for Windows 2010 Version 1703 for x64-based Systems (KB4038788) failed to install on my computer on 9/13/2017. Any idea why? Thank you.

Hi • 2017-09 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4038782) This has failed to install 4 times. My Windows 10 is now unstable. I get critical structure warnings. Computer gets to 100% configuring updates then update fails. Help pleas

Error: We couldn’t complete the updates, Undoing changes. Don’t turn off your computer.

Anonymous

This error may appear anytime a Windows Update fails. To investigate possible solutions, we need to start with the specific error code.

We can do this by viewing your update history.

Swipe in from the right edge of the screen (or, if you're using a mouse, pointing to the lower-right corner of the screen and moving the mouse pointer up), and tap or click Settings.
Tap or click Change PC settings, and then Update and recovery.
Tap or click View your update history.

View failed update error code.

Please post here with your error code, so that the Community can try to help guide you appropriately.

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.

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998 answers

Anonymous

2017-09-18T17:54:18+00:00

Installation Failure: Windows failed to install the following update with error 0x80070091:

Security update for Windows Kb4038788

I have tried the following to fix the issue :

   1. Wiundows 10 Update troubleshooter

   2. SFC /scannow

   3. Repair or reinstalled windows store component thru

DISM cmds.

   4. Renamed or delete the Windows Upadte Cache (SoftwareDistribution Folder).

   5. Even tried chkdsk /f /x cmds...

   6. Lastly tried to download kb4038788 x64 cumulative update from MS Update Catalog,

it failed also...

All of these still it won't install, probably it wants to do a full clean install...

I'm running windows 10 home edition with the creator's update.
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Anonymous

2017-09-16T02:34:05+00:00

I'm having the same issue, trying to install the KB2919355 update and it will tell me to restart, which I do, and then it says couldn't complete the updates undoing changes and that literally takes hours. I've tried almost a dozen times to get this update to install, but it refuses, I'm at my wits end with it. It says I have not tried to install updates so it doesn't give me any error codes. Only the couldn't complete the updates every time I try. I'd like some help figuring and fixing this.
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3 people found this answer helpful.

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Anonymous

2017-09-15T11:39:21+00:00

when i was updating the windows some programs are not installed and it pops up as KB2899189 and other error as KB2850036, pls fix this issue and let me know that my updates are working properly with our any error
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Anonymous

2017-09-15T11:15:43+00:00

2017-09 Cumulative Update for Windows 2010 Version 1703 for x64-based Systems (KB4038788) failed to install on my computer on 9/13/2017. Any idea why? Thank you.
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Anonymous

2017-09-13T21:46:02+00:00

Hi

• 2017-09 Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB4038782)

This has failed to install 4 times. My Windows 10 is now unstable. I get critical structure warnings. Computer gets to 100% configuring updates then update fails.

Help pleas
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3 people found this answer helpful.

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