Flash......If you cannot get into safe mode it sounds like a looping system (so ive been told as i had this a couple of years ago). Therefore the only way out for me was a recovery. Hopfully you have a recovery disc.
If you have the windows xp disc there is a way of repair.The other guys can help you further. Ive not had to do this,so best left to the experts.
But if you can get into safe mode.tapping f8 on start up,try a system restore first.
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