I've noticed I can hear my hard drive "running" after owning it for two years and not hearing it once. It's not terribly loud or making a clicking/grinding noises though, so I don't think it's about to die. When I play games, they now run at a low FPS regardless of how low I put the settings and the disk usage sits usually around 100% the entire time while playing. Sometimes it's at 90-100% while idling at the desktop. I've been installing a lot of drivers for my gpu back and forth lately to test different ones out with different games, other than that, I haven't done anything out of the ordinary.
There is nothing I see in the task manager that is using a lot of my hard drive or CPU either. Do I basically have to get a new hard drive, or is the hard drive even a problem? If so, is there a potential fix? Thanks in advance. If there's anything else I could add that would be helpful let me know. Someone told me to run a hardware diagnostic on my hard drive, which I need a DVD-R for I believe, so I'm about to go buy one. I don't have the greatest build, but I should be able to get more than 25-30 FPS in 2+ year old games on low settings, I have before. Now it's impossible to get anything over 30 FPS.
OS: Windows 8.1 Pro Preview Build 9431 64x
CPU: AMD Athlon II X4 640 3.0Ghz
RAM: 8.00GB Dual-Channel DDR3 @ 666MHz
MOBO: BIOSTAR Group A780L3B
GPU: 2048MB NVIDIA GeForce GTX 660 (EVGA)
HDD: 466GB Hitachi HDS721050CLA362 ATA Device (SATA)