Start Up Problems

[Zaireekairl]

Hi All.
Recently I've had major problems with my PC. Basically it will only run in safe mode. If I try to start up normally it will reboot after the vista loading Bar, sometimes if I turn it on this won't happen, vista won't start up at all even though the fans, lights and hdds all appear to be working. I'm pretty useless with pc's so I'm hopeful you guys can help me out.

 

[Zaireekairl]

Ok, so I tried malwarebytes and cleaned up some malware off my system. The same problems persisted. Tried a virus scan with avast, set up the scan for start up and restarted the system, scan began but I then got a blue screen of death and the operating system refused to load allthough the pc did not restart it stayed on.