hi my computer keep going back to the boot up screen. it says this has happened due to a recent power failure, hardware or software installation. each time i try to load windows which it gives me three options i.e either normally, last good config or safe mode it keeps coming back to the same screen whichever one i choose. i have tried booting it up from the backup cds to reload windows and it seems to bypass this even though the boot sequence it set to boot first from cd. the only thing which i can think has caused this was i deleted my antivirus software nod 32 as it did not seem to be working correctly. i asked the it guy at work what could be wrong and he said my hard drive had probably gone but surely this cannot have happened from just removing one programme. any thoughts or answers to my dilema would be much appreciated.