Forum Discussion
HenkR
Mar 11, 2026Copper Contributor
Failure Insider program update 26220.7961
I am encountering error 0xc1900101 at the end of the update process for build 26220.7961. Despite three attempts, the installation fails and rolls back. I have been a member of the Windows Insider Pr...
HenkR
Mar 13, 2026Copper Contributor
I've exhausted all options, but the update still won't work. I'm going to perform a completely new installation now. Sadly, there's no other choice.
Thank you for all your responses.