Overheating?

[Guest]

My parents pc has been making loud fan noises. I think it the cpu cooling fan speeding up, but im not 100% sure.
Any ideas?

 

[Shadow703793]

If you haven't cleaned that PC in a while now may be a good time to do so.... dust bunnies can cause all sort of problems including overheating, restricting air flow,etc.

 

[Guest]

There's 1 other thing that might be causing the problem.
They did a virus scan and it found a virus. It said "Over buffering in JPEG image could allow code excretion" hence cpu working harder.