XP Restarts upon logon in 5 to 6 min

The Win XP Closes Down to Blue Screen Error Every Ten to Fifteen Minutes..when I go to Safe Mode it doesnt happen nothing. When i log on into the Windows normally it restarts.
What could be the problem ?
Answer #1
It could be a range of things, but we need more info. BSOD’s are usually caused by faulty hardware, f***ed up drivers, or malware (or the effects of). Can you tell us info like: what antivirus do you use, have you installed anything recently, have you upgraded your pc, how old is the machine?
Answer #2
I have manage to make Full System Recovery !
Probaly it was a virus !