I’m trying to upgrade my Windows 10 to 11 on my dual-boot system (with Ubuntu), ?

Kfxeh · Post by **Kfxeh** » Mon Jan 12, 2026 4:09 pm

Can confirm. Also, have you double-checked that your PC meets all the Windows 11 requirements, like TPM 2.0?

xS6ab2 · Post by **xS6ab2** » Mon Jan 12, 2026 4:48 pm

This happened to me. I had to temporarily disable the Ubuntu bootloader from my BIOS boot order to get the Windows 11 install to complete.

TeFwofQYEK · Post by **TeFwofQYEK** » Mon Jan 12, 2026 9:28 pm

This. I had the same problem. After disabling the other OS in the boot order like they said, I also had to disconnect my Ubuntu drive physically to stop the rollback.

lngg34695 · Post by **lngg34695** » Mon Jan 12, 2026 10:08 pm

Yeah, that's the move. One extra tip: after you reconnect the Ubuntu drive, you might need to run a quick repair on the Windows bootloader from your installation media. Good luck!

6537num · Post by **6537num** » Tue Jan 13, 2026 12:27 am

Same here. Also, have you double-checked that your TPM is enabled and meets the 2.0 requirement in your BIOS?