1.couldn't restart pc until manually shut it;
2.when tried to log on, pc started the log on but switched to log off and this will repeat till I manually shut the pc;
3.if I did manage to log in, screen was blue and no icons so only manual turn off possible.
4. tried to repair XP with the original disk but it only allows me to "upgrade" internally and when it finishes the downloading and starts the set up, it goes on for hours -- prompt says "set up being restarted" then it logs off, starts again and so it went on for 5 hrs.
5. I'd prefer to repair the system instead of installing it over as I would lose whatever I had before besides am not sure how to get my DSL afterwards.
Please tell me what can be done! Thanks in advance!