now, archangel... lets be nice. in addition to letting him know that he has no business whatsoever using BT, we should also go the extra mile and confirm for him that yes, he has certainly deleted his Windows 7 partition and all of his important info is no longer quite so important.
let's not leave him hanging with unanswered questions, after all. it wouldn't be right.
---ok, i'm kidding mac007. you PROBABLY need to research rebuilding your boot up files (either Windows or linux) so that your computer knows that Windows is there to boot. failing that, you could simply copy your old data to someplace that you will find it easy to access from BT. chances are good you still have it...
don't ask here, go Google it. you'll have much better results and a third less heartburn.
good luck with that.