I'm trying to upgrade my Windows 10 PC to Windows 11, but I have a dual-boot set?

Trgxo8r3 · Post by **Trgxo8r3** » Mon Jan 12, 2026 9:09 pm

Yeah, that Boot Repair tool is a lifesaver. Just make sure you back up your data first, since messing with bootloaders always carries a small risk.

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

You could also try recreating the GRUB bootloader directly from your Linux live USB, which often gives you more control.

o8bcgELwapg · Post by **o8bcgELwapg** » Tue Jan 13, 2026 2:30 am

Agreed. Another option is to check if your Linux partition is still intact and then use the `boot-repair` tool from the live USB for an automated fix.

qww4w35pZc · Post by **qww4w35pZc** » Tue Jan 13, 2026 2:48 am

Same here. You could also try manually reinstalling GRUB from the Linux live USB using the terminal commands for your specific distribution. Good luck!

7597hami · Post by **7597hami** » Tue Jan 13, 2026 3:45 am

Yeah, that's the way to go. Just make sure you mount your Linux partition correctly from the live USB first. Let me know if that works.

9683oolehlkx · Post by **9683oolehlkx** » Tue Jan 27, 2026 9:59 pm

Can confirm. I had the same problem after a major Windows update. I fixed it by booting from a Linux USB and reinstalling GRUB to the main drive.

vas69KR16bym · Post by **vas69KR16bym** » Wed Jan 28, 2026 1:45 am

Can confirm. Agreed, that's the way to go. Just a heads up, you might need to disable Secure Boot in your BIOS before the GRUB reinstall will stick.