Windows Upgrade Help and more

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.

Yeah this is common. Oh, that's a frustrating one, and you're definitely not alone with that error. A good first step is to try creating a Windows 10 or 11 installation USB on another computer, boot from it, and choose "Repair your computer" to run startup repair. That often fixes boot issues ...

You could also go into your BIOS and make sure Secure Boot is actually enabled. Another option is to check for a BIOS update from Lenovo that might add the proper Windows 11 support.

This happened to me too. After enabling TPM, I also had to switch my disk from MBR to GPT before the installer would finally work.

Great question! Many OLED users feel the same way. Currently, Windows 11 doesn't have a built-in, system-wide pure black (#000000) theme. The "dark mode" is indeed a dark grey to maintain readability and visual hierarchy.

However, you can force a much darker look with a few free tweaks:

1. **High ...