Help, Help, Help!! Somebody plz!

Well yesturday my PC got totaly ****ed up. I went to competition yesturday and got back home at 5 to find my PC on and with system error. There was corrupt/missiong file in windows/system32/config I believe if memory serves me right. I used Compaq Operating System to fix the corrupted file, but than it asked me for Administrator password...wtf I do not even have a password on my PC

WTF should I do now? I cant use Recovery CD and I have fresh copy of XP on my PC which does not have anything...no MS word, no Outlook, No noyhing except most important programs

EDIT:
Also according to my Sister and Dad, PC turned on by its self...they did not turn it on in the morning...and I turned if of night before, weird

Edited by - Leonhart on 4/25/2004 8:30:20 AM