Windows 10: Couldn't complete the updates, Undoing changes - Dec, Jan, Feb Cumulative Updates

I have be having trouble installing the last three months cumulative updates from Windows Update. From December through February.So regarding the latest February update KB5010342, Windows downloads and starts installing. After a couple restarts it shows the message "We couldn't complete the updates. Undoing changes". Windows Update shows the error code 0x800F0922. This is happening on all three monthly updates but only for cumulative updates, other updates are installing fine. Now, here's what's interesting. Update History, in quality updates, shows all of those 21H2 for x64-based systems cu

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Windows Update (KB4487044) does not install

Hello Stefano.

I follow each of your steps and carry out finally Windows update 2019-02 Cumulative Update for Windows 10 Version 1809 for x64-based Systems (KB4487044).

But it went first up to 30 % and then up to 44 % buy no futher. Then "We couldn´ t complete... and "Make undo for...changes"

What to do next?

This is my system:

Regards

 

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.

 

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.