-- If you are going to help me please read through all of the below --
Okay I'm really stressed out about this now. Here's whats going on:
So I was recording a video on Fraps and I used a disk partition called E: because it had 100gb free whereas the drive that I usually put my fraps videos on has about 50gb free. So I did my recording and it came to around 85gb. Meaning there's now 15gb left in E: drive. After the recording I decided to play it back... Behold, the video was corrupt! So then I tried deleting it and it wouldn't delete, explorer.exe had crashed, so I restarted my PC (hard restart) and it took a very very long time to start up, when it had started (after the windows logo screen) (btw Windows 7 professional) the monitor screen was black with my cursor in the middle, I could open task manager. So one it all started up I went to My Computer and found this: http://i.imgur.com/AcgZVOD.jpg
You will notice that E: drive does not have any usage or anything showing up, trying to enter E: would just cause explorer.exe to stop working, running an anti-virus on that drive doesn't work. Doing a chkdsk would crash after it found a bad cluster at file 5035 even though it was at 5030 in the 4th out of 5 steps, it was like that for a good hour so I closed the chkdsk. I opened Disk management and found this: http://i.imgur.com/a9jMDXC.png
You will notice all the partitions that are part of the hard-drive are healthy but at risk.
I've tried copying files from the other partitions to my 1tb hard-drive and the transfer speed is like 100kb/s
Removing this hard-drive makes my computer run fine.
The hard-drive in question is a WD5000AAKS 500gb.