oliverpowell

Sorry, I've misunderstood the question. You'll get few useful resources on the link here. Consider following the solutions and see if it helps you.

I'm not sure but you can get to command screen by using 'system recovery options'. Most OEM editions have this by default. Else, you'll require a boot CD to boot into system recovery options and use command interface. P.S. This isn't a malware. Something has to deal with faulty memory sticks or fan(not working properly). Let me know how it goes!!