How I know which drive NOT to reinstall Windows does on.

Common sense maybe? Would you be able to fit even Windows 95 on an 8 MB partition?

All of them.

Disconnect all but one. Never trust the windows installer!

@Sarcaxxo I'd be too lazy to do that.

@kamen he was taking about the drive, not the partition.

@Sarcaxxo I ended up having to because of another bug which means you have to disconnect all EFI bootable drives or it won't install.

@Rohr Yeah, I know, but imagine doing that on a laptop. It's easy with a desktop, but still requires some effort. On the other hand, out of four drives I have in my system right now no two are of the same size, so that'd be easy to figure out.