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
    2021-08-03T01:13:20+00:00

    I have a Ryzen 7 3700U CPU with Radeon Vega Mobil GFx video in one of my laptops, and Windows 11 upgrade it from 10 to 11 without a problem.

    NOTE:

    All of you people who do not want to install via clean install, there is another option for you guys to use if you're still interested in running windows 11. If all you have is 1 hard drive, you could repartition it into two drives, then install Windows 11 on the new partition clean. Once you do that, Windows will automatically create a boot menu to allow you to dual boot between your Windows 10 with all your apps installed or your Windows 11 that is clean. at least if you do this, you will find out for sure if it's a hardware issue (if it fails the install) or a software issue, (if it doesn't fail). This way you're not having to re-install all your other apps to get back up and running. To go back to Windows10 simply reboot your machine and select Windows 10 instead of Windows 11, as your boot partition, and away you go, to be productive again. It's not the perfect workaround, but it'll at least give us an idea of where the problem is, you'll get to check out Windows 11, and you won't have to re-install all your apps again. Besides that, when moving up to a new O/S it's always best to start it from scratch, as to not carry over any software issues, to begin with.. And it'll probably be valuable information that Microsoft can use to help them solve their install problems. if it works or if it doesn't, either way, it would benefit Microsoft to know.

    If you have more than 1 hard drive, then it is even easier, just select another drive to install Windows 11 onto. Just make sure you have enough free space for the install to complete. There's a way to make a USB install disk with Windows 11, from a Windows 10 USB stick. I've seen it on "youtube", not sure how the product code question will behave, if it'll nag you for a code or not, however. The trick is you have to already have a Windows 11.iso copy. With all these customers of Microsoft having these issues, perhaps Microsoft will allow an. ISO release of Windows 11, to get those who are stuck, unstuck? So how bout it Microsoft, if you're listening, how about providing us with a .iso of Windows 11?

    Also, there is word going around that there is a .dll file in windows 11 causing a bunch of problems named appraiser.dll that if you simply copy the windows 10 file over this file it fixes a lot of issues? It's mentioned real quick in a youtube video so check it out and see if it helps. Look up (how to clean install windows 11? It also explains how to make a clean install of windows 11 but you have to get your hands on a windows 11.iso file first. So this won't work for those who can not obtain the .iso. Seems to me if you have a windows 11.iso file you should be able to perform a clean install with it, without having to modify it, but I guess not.

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  2. Anonymous
    2021-08-02T21:49:36+00:00

    I keep updating my ticket in the Feedback Hub but have yet to get any response from MS on it. Not sure how much more info I can provide.

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  3. Anonymous
    2021-08-02T19:05:42+00:00

    I happen to be in a similar boat as.. 22000.51 (Dev) 22000.65 (Dev) and 22000.100 (Beta) have all ended at the 48% mark of installation with an "Invalid data Access trap Green screen error with 0xc1900101 as the code , with no further details, leaving me confused and frustrated, as while the PC health thingy says my 6-7 month old HP desktop, AMD Ryzen 3-3200 w/Radeon Vega is able to have W11 installed on it , something seems broken. All of my drivers from what I can find via device manager are all up to date.

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  4. Anonymous
    2021-08-02T17:13:25+00:00

    Here's what I now have installed, if this is a help to anyone:

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  5. Anonymous
    2021-08-02T17:12:11+00:00

    If the development track doesn’t work, and Microsoft in their infinite wisdom moves that same build to the beta track, there seems to be a cognitive disconnect.

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