Re: Mouse and keyboard keep "sticking"
Sup bro. I'm not a hardware guru or anything, but maybe a little more computer savvy than yourself, so take it fwiw. Few points:
Mouses do have limited life. I think standard ones last about 1 million clicks. After that they start to not respond. Perhaps the new one you bought sucks? If it's cheap, might have problems right out of the box? Is it more likely to respond when you click hard? If you answered no to all those, it sounds like the problem might be with your USB port. Try plugging it into another USB port.
If that doesn't work...
Memory or CPU problems may cause unresponsiveness from your mouse/keyboard. But it should be relatively easy to determine if your memory or CPU is being maxed out (your PC specs are fine btw). Just check out the Windows Task Manager. Unless a lot of other strange stuff is happening, you probably don't have a malicious virus.
As far as I know, hard drive space should not be causing a problem like this, unless you are completely out of space. Being down to 3GB is actually pretty low, but if you cleaned up files and then defraged, and the problem still persists...
I think the problem is most likely with the USB ports.
Do you notice any patterns that cause the problem? Like when you are running a particular program, it happens more often? When you are online? Anything like that?