Hi,
The error 0xc1900101-20017 means the Windows feature update is failing because of driver conflicts or system restrictions. It’s a rollback error that happens when Windows detects something that could cause instability during the upgrade.
What I suggest is:
Free up disk space and disconnect unnecessary devices.
Update or temporarily remove problematic drivers and third-party antivirus/VPN.
Reset Windows Update components and run the Update Troubleshooter.
If the issue persists, use Windows 10 Update Assistant or Media Creation Tool for an in-place upgrade.
I hope this helps!