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

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  2. Anonymous
    2021-11-22T19:05:20+00:00

    Got this one too. First with the normal upgrade process, before installing Win10 21H2, then again after installing Win10 21H2 and running the Windows 11 Installation Assistant. Seems like it downloaded the dang thing all over again. Failed again in much the same way. Then decided to uninstall some apps that were a bit uncommon, like a Sony DPT-RP1 network based file sync tool ("Digital paper app") and BatteryBar Pro (with its no longer supported toolbar). This time the Installation Assistant made it through.

    Not exactly a smooth process. You'd hope that MS would have a list of apps that seem to cause problems, and could prompt the user "Hey, do you really need these apps? If not, please uninstall before attempting to update." Or at least prompt us with possible issues right after the failure, rather than having users scour the internet for tips.

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  4. Anonymous
    2021-11-23T00:31:56+00:00

    Known issue. Microsoft is creating a fix.

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  5. Anonymous
    2021-11-23T00:42:21+00:00

    What Known Issue are they fixing?

    The OP's issue goes back to June.

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