my pc HAS decided it now wants to run in safe mode and will not do a system restore, any help welcome, I have not done anything to it.I came to put it on today and it is running in safe mode so it is making it very hard to do anything.I have shut it down and restarted it but still doing same, was fine last night, I am using Windows Vista home premium. Comp is about 3 years old, have tried system restore but when it has finished it I get a message saying unknown error prevented it doing it.I found what I thought were the back up discs I got with it, tried them but it is still same, IT will not let me do a restore and I have not installed anything new.