My computer keeps freezing

dunnomuch

Reputable
Apr 8, 2015
2
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4,510
My computer freezes 20-30 minutes after starting it, I can still move my cursor and pressing Num Lock will still turn the lights on.

It doesn't matter what I do, using Firefox, playing a game or not doing anything. It will say "not responding" for every program and I can't start or close anything. (it only happens when i open these programmes)
Finally, if I right-click anywhere it will fully lock up, to the point where I have to reboot.

The problem started a while ago but it has gotten worse over time. I tried scanning for viruses, cleaning the registry, cleaning cookies and deleting programs I don't use.

Also: Ctrl+alt+del doesn't do anything. I tried leaving it for 10-15 minutes, but it didn't unfreeze.

I have seen a similar problem to this which had a solution of using an alternate antivirus software but i am already using this. (Microsoft Security Essentials and Malwarebytes.)