Help, I have windows 7 64 bit and I tried to install xp on a separate partition. Both are installed now, but xp is now drive C: and 7 is now drive D: I can no longer get onto windows 7 at all. I deleted windows xp hoping 7 would be default now. It just sD:ys now that files are missing on xp and I can not boot up. I have screwed up my win7 install now! I am typing from Asus xpress gate, a motherboard bios utility. Can anyone please help me to restore windows 7 without deleting data and re-installing?