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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  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
    2021-10-24T14:35:17+00:00

    I tried to update my pc using the Windows 11 installation assistant but it didn't work and game the error code 0xc1900101

    Does your PC meet the requirements for Windows 11?

    Run this: https://aka.ms/GetPChealthcheckapp

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  3. Anonymous
    2021-09-29T08:41:09+00:00

    would you get the same issue with one SSD that has 3 partitions. (main one, recovery one and EFI system partition.

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  4. Anonymous
    2021-09-22T15:38:19+00:00

    Thanks to everyone who contributed suggestions. I had already tried most of them, but did some over again plus ran various windows checking tools, etc.

    Long story short: I am still not able to update my Windows 10 system to windows 11.

    1. Installed Driver Booster and made sure every driver was up to the latest level
    2. Despite my motherboard having TPM in Firmware (Gigabyte Z390 Aorus Pro), I ordered and installed a physical TPM module (just to be sure)
    3. I upgraded my UEFI firmware on the motherboard to the very latest level
    4. I analyzed the setupact.log and setuperr.log files and was not able to find anything that gave me any bright ideas about how to proceed
    5. I ran setupdiag and didn't find anything I could use
    6. I ran the system file checker tool (sfc), which corrected some issues

    Nothing worked, so I gave up (for now) and carved out a new 128GB partition on my nvme drive and installed the windows 11 ISO file onto that, and am now using dual boot between Windows 10 and Windows 11. Not the way I wanted it to work, but for now it seems to be the only way I can get any Windows 11 testing done.

    Between the windows 11 hardware requirements and the problems updating from Windows 10 to Windows 11, I am afraid not many will be able to run Windows 11 - unless they buy a new computer with Windows 11 preinstalled.

    Thanks again for your support,

    Alfred

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  5. Anonymous
    2021-09-21T10:30:02+00:00

    Everyone has different reasons for the error. my WIN11 does not see the hard drive. this algorithm helped me https://www.asus.com/support/FAQ/1044458/ win11 does not contain drivers for 11 series. win10 works without problems

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