Windows 10: "Couldn't Complete Update, Undoing Changes"

Hey there, new to this sub. Last night my PC updated. When I tried to log on this morning, my PC made it to 87%, hovered there, and then gave me the error message from the title. I then restarted and did it all over again. I'm not very experienced with computers, so any pointers toward a solution would be much appreciated. Thanks!

submitted by /u/swelroy
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:)

 

We couldn't complete the updated, undoing changes...

Hi,



I suggest you to run the Windows Update troubleshooter and check if it helps.

Windows 10 has a built-in troubleshooter to check and fix issues with Update. I would suggest you to run this troubleshooter to check if the issue is with your Windows update.

Refer these steps:

• 
  Press Windows key +X, select
  Control panel.
  
• 
  Change the view by option on the
  top right to Large icons.
  
• 
  Click on troubleshooting and click on the
  view all option on the left panel.
  
• 
  Run the Windows Update troubleshooter.
  

Keep us posted on this issue so that we can assist you better.

 

Windows 10: "We couldn't complete the updates, undoing changes"

I've got the same issue and following on @Arthur's suggestion, I had a look at my user SIDs in the registry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList and some of them belonged to users that no longer existed in the system (I had previously removed them).

I've removed the dummy entries (luckily there were only a couple) and the update worked.

PLEASE save yourself some trouble and backup the registry before trying that.

 

Unable to complete updates. Undoing changes

Hi,

If you receive We couldn’t complete the updates, Undoing changes, Don’t turn off your computer message, and your Windows 10/8/7 PC is stuck in a loop, then this post may help you.

http://www.thewindowsclub.com/we-couldnt-comple...

Please let me know, if that helps.

Kind Regards:

Yank M