Cannot install Windows 11 - Error 0xc1900101

well Microsoft will have to come up with a fix but it wont by pass tmp service in the script it has to identify the drive that windows 11 is on for secure boot system . So its up to scripters to figure out a way to fix this problem .

My only drive is SSD so if I unplug it, there is nothing to boot to. My failure seems to happen after 85% of the installation and several reboots. I hope this helps diagnose the problem. I can submit logs but no one has contacted me. Next week I will try a different process - I will open my own feedback instead of updating this one. By the way, I have Windows 11 running on another machine with nVme SSD, so the problem isn't only SSD.

I found one way to install Windows 11. Whip my computer clean.

1. Partitioned the SSD, with only native W10.
2. Booted from that partition.
3. Went to the Insider site and downloaded W11.
4. Success.
5. Reinstalled the 20+ applications.
6. Reloaded the 74+gb of files and documents.

I have read many unique ways to get around the installation challenges. Some work for those technically oriented people and some don't. No one, including Microsoft, believes this volume of failure, would EVER fly in a general release. There would be 500,000,000 calls to the help desk. It begs the question, why is there an advance release, that in over half of the brave people agreeing to take this task on, that fails over and over and over again?

To be perfectly clear. My beef is not with W11. It seems to work fine. It is with the installation program! Windows 11 team - be proud. 11 Installation team - not so much.

I am seeing this same error code repeatedly (Upgrade to Windows 11 - Error 0xc1900101). My PC only has SSD and nvme storage, and I do not really like the idea of cleaning it out and installing a base W10 again. My PC meets all the requirements for W11.

This error seems to impact many Insider users and prevents me (and others) from doing any testing of W11, which the Insider program is all about.

Is any work being done to resolve this installation issue, or are there any proven method to get past this error code?

Thanks,

Alfred Christensen

I am seeing this same error code repeatedly (Upgrade to Windows 11 - Error 0xc1900101). My PC only has SSD and nvme storage, and I do not really like the idea of cleaning it out and installing a base W10 again. My PC meets all the requirements for W11.

This error seems to impact many Insider users and prevents me (and others) from doing any testing of W11, which the Insider program is all about.

Is any work being done to resolve this installation issue, or are there any proven method to get past this error code?

Thanks,

Alfred Christensen

0xc1900101 errors are generic rollback errors, usually caused by a faulting driver. There is not a single fix for the error. You will need to run SetupDiag to get a better idea of what is causing the issue. To reduce the risk of getting this error, you should ensure you are running the latest drivers from your device manufacturer's website (not Windows Update or Device Manager).

SetupDiag will also give you an extended error code that can help.

-Eddie