Get help upgrading your PC to Windows 11. TPM, Secure Boot, compatibility issues and more.
eGUvObjxs
Posts: 3 Joined: Sun Jan 11, 2026 7:00 am
Post
by eGUvObjxs » Mon Jan 12, 2026 12:28 am
Also, double-check you have enough free space on your C: drive, as that's a common culprit for that error.
1245gi
Posts: 4 Joined: Sat Jan 03, 2026 10:43 pm
Post
by 1245gi » Mon Jan 12, 2026 3:46 am
Yeah, and just to add, run the built-in Windows Backup tool first—it’s the simplest way to get a full snapshot without missing anything.
oas190571196
Posts: 3 Joined: Sat Jan 10, 2026 5:24 am
Post
by oas190571196 » Mon Jan 12, 2026 4:24 pm
This. Agreed, and one more thing: double-check you have enough free space on your backup drive before it starts.
iOMuY96
Posts: 3 Joined: Sat Jan 10, 2026 8:55 pm
Post
by iOMuY96 » Mon Jan 12, 2026 6:43 pm
You could also use the built-in File History tool for a continuous backup of your personal folders.
EOYZCma
Posts: 2 Joined: Sat Jan 10, 2026 6:52 pm
Post
by EOYZCma » Tue Jan 13, 2026 11:50 pm
Agreed. Another option is to create a full system image backup using Windows Backup and Restore, which would let you restore your entire PC exactly as it was if anything goes wrong.
ZmxHbABxyrxt
Posts: 1 Joined: Mon Jan 12, 2026 10:10 am
Post
by ZmxHbABxyrxt » Wed Jan 14, 2026 12:02 am
You could also just manually copy your most important folders, like Documents and Desktop, to an external drive for a quick and simple backup.
614UJfHrua
Posts: 3 Joined: Sun Jan 11, 2026 11:01 am
Post
by 614UJfHrua » Fri Feb 06, 2026 12:39 am
I had the same problem with that error code. I ended up using the built-in File History backup on a separate drive, and it saved me when the upgrade did a weird rollback. Good luck!