Cannot install Windows 11 - Error 0xc1900101

Anonymous
2021-06-28T21:21:32+00:00

I am trying to install the new Windows 11 update from Windows Update, but I keep getting error 0xc1900101.

The installation starts, and after a couple restarts, it says:

" Attempting to recover installation "

" Undoing changes made to your computer "

And then I am greeted with error 0xc1900101 on Windows Update.

Windows for home | Windows 11 | Install and upgrade

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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  1. Anonymous
    2021-10-24T19:23:02+00:00

    I found that Windows 10 had made many default users, eg defaultuser 100000. I deleted these, leaving just the defaultuser file and then I was able to install windows 11.

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  2. Anonymous
    2021-10-25T07:48:47+00:00

    Health check says it's Ok and it's a Microsoft Surface Go only about 3 months old.

    I ran MS recommended checks to see Op system OK and got 100% OK.

    Mysteriously the update to W11 has now disappeared from my laptop update page (and I haven't updated is still W10Pro). I can only assume it's been withdrawn for the cohort of m/c's my tablet fell into. It would be nice if MS was a little less secretive.........

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  3. Anonymous
    2021-10-25T07:50:42+00:00

    I don't understand the response but I'm using my unique user name in a genuine copy of the Operating System (W10Pro). See my other response below

    Health check says it's Ok and it's a Microsoft Surface Go only about 3 months old.

    I ran MS recommended checks to see Op system OK and got 100% OK.

    Mysteriously the update to W11 has now disappeared from my laptop update page (and I haven't updated it is still W10Pro). I can only assume it's been withdrawn for the cohort of m/c's my tablet fell into. It would be nice if MS was a little less secretive.........

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  4. Anonymous
    2021-11-06T11:05:04+00:00

    Help me i have same problem, how i can fix it

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  5. Anonymous
    2021-11-06T13:44:03+00:00

    Happened to me, too. I now use the Update Installation tool:

    https://www.microsoft.com/en-us/software-download/windows11

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