Update Windows 11 Insider Preview Feature Update (26220.7934)

The error code 0xc1900101 during a Windows 11 Insider Preview Feature Update (26220.7934) typically indicates a driver or hardware compatibility issue, or a problem with the update process itself.

What do you have installed currently. What channel are you on?

Have you considered posting at https://learn.microsoft.com/en-us/answers/tags/953/windows-insider