When i run anti virus software for a sytem scan my pc is switching off at about 90% done , if i try to convert a dvd for my psp it is always switching off every time .Then i reboot it is taking 4 or 5 attempts to boot up completely Any ideas . Thanks
If its definately not a virus then you need to get someone to check if your ram is installed correctly, failing that as 007 says, new ram could well be in order- ram sticks are extremely sensitive to static so if someones been touching them more than they should (!) without an antistatic wrist strap or some sort of grounding, they can easily be ruined, eg in a dusty case thats never cleaned on a reg basis. Reinstalling a full copy of windows from disc will definately cause you to lose all your files. I would try and back up the most importaint data onto cd, but if your system is still resetting on the odd occassion I guess you could try and burn 1/2 to 3/4 full cd content to see if that makes a difference.
Your local pc repair store may be able to connect another system up to yours and transfer the important documents u dont want to lose across for safe keeping, until yours is fixed, so Id ask about that if you dont know anyone else that has a pc that could help. good luck :)