@Foxxcoon That's what I tried first, but I don't have any machines with a 32bit UEFI and I'd really love to get 32bit Windows XP running, which doesn't seem to be possible with the Longhorn bootloader :/

And ah, a t620, yeah, that thing is a PITA even when you don't try to get unsupported systems installed, at least mine was until it died all of a sudden :v