Windows XP to W̶i̶n̶d̶o̶w̶s̶ ̶1̶1̶

[@dark-mode.]

I had just noticed I choose "Windows Setup Rollback", that's most likely to be what broken it. New version of this video coming later!

[@dark-mode.]

To add, the idea I thought was cheating was converting it to GPT and make EFI.