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VijayalakshmiK-7821 avatar image
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VijayalakshmiK-7821 asked AllenLiu-MSFT commented

Latest windows update gets undone halfway through installation

My laptop, Dell Vostro 14, is a 64-bit system with Intel i3 processor running Windows 10, version 21H1, Os build 19043.1165
I got a windows update this morning, and I restarted the system to install it. Half-way through, installation stopped and said " couldn't complete the update/install and undoing changes". The undoing was successful though.
This is actually the second time this has happened, with the first one on 18th Sept (Saturday). I dont know why the update couldn't be installed on my system and am sorry I couldn't note down the update details.
Can I have an answer to this? I am eager to get this fixed because Windows 11 will be out and I suppose users will get multiple updates en route to it.

windows-server-update-services
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1 Answer

AllenLiu-MSFT avatar image
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AllenLiu-MSFT answered AllenLiu-MSFT commented

Hi, @VijayalakshmiK-7821
Thank you for posting in Microsoft Q&A forum.

As a common Windows update error, the error “we couldn’t complete the updates undoing changes Windows 10” occurs due to the following possible causes:
1.Lack of enough free disk space.
2.The update is interrupted during the installation process.
3.Corrupted system files.

Here are some solutions for this error in below article, you may check it to see if it helps:
https://www.partitionwizard.com/resizepartition/we-couldnt-complete-the-updates-undoing-changes.html
(Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.)


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There is no update for a couple of days. May we know the current status of the problem? Is there any other assistance we can provide?

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