For some odd reason, I was just playing a game, running at a fine 60 fps, when suddenly it slows to a meager 8 fps. And not just the game has been affected. My whole system has. It no longer plays audio or video files properly, instead it’s skipping alot and making static noises everytime I try and play them. I’ve tried system restoring, Defragging, Disk cleanup, Startup alterations, Registry Cleaning, and no malware, viruses, or anything like that is there, and none of it has worked. I’m at the end of my rope, here. What do I do?
For some odd reason, I was just playing a game, running at a fine 60 fps, when suddenly it slows to a meager 8 fps. And not just the game has been affected. My whole system has. It no longer plays audio or video files properly, instead it’s skipping alot and making static noises everytime I try and play them. I’ve tried system restoring, Defragging, Disk cleanup, Startup alterations, Registry Cleaning, and no malware, viruses, or anything like that is there, and none of it has worked. I’m at the end of my rope, here. What do I do?

EDIT: I’ve only had my com for 6 months, and I haven’t really pushed it all that much. It’s a Vista, with a 3.00 GB RAM, AMD Turion X2 dual-core mobile technology RM70 (2.0 GHz, 1 MB cache), and up to 1408 MB ATI Radeon HD3200 Graphics HyperMemory. Maybe this helps some more.
EDIT: Well, I have over half my memory available, about 81.5 GBs. I’ve already done a registry cleanup, and there`s only 2 programs that start at startup. Used to be 4… Anyway, the only possible thing I think there’s left to do is reinstall Windows. Programs are slower, though. Like I said, my whole system has slowed down. Even when I download something, it`s slower, and I have high-speed internet. Even moving or copying programs to different spots is WAAAAY slower than what it used to be. A while back, I do believe this happenef to me before, but only visual effevts were affected, and not the speed of the com. I think it was cause of ‘Windows Silverlight’. So, I did a system restore, and everything went back to normal. This is different, though.