So yea, I did the registry cleaner thing, antivirus scan, and malwarebytes scan, and my computer was rnning great again. However, maybe after a minute or 2, windows tells me that it cannot install anyupdates and click here to solve the problem. At that very moment when i get that message, my whole computer starts to freeze up again. And I know its not a virus or malware. What could be the problem? Should I Just completely turn off windows updates? Best answer for 10 points.

I need to clean my registry; computer has no free space not even enough to defragment! Any suggestions?

Thats pretty much it i guess. I mean , also what are some good trusted pc cleaners that are either freeware or inexpensive. A registry cleaner. Antivirus. whatever you got thats good freeware.