I have had this PC for a couple of years now and everything has been fine with it, recently (a few months ago) it started getting really laggy and slow after being on for 8hrs +, i figured it may just have a lot of stuff on it.
The issue was basically forcing my Ram usage into absurd levels and once it hit 99% it would never come back down, i was going to buy an SSD anyway so i figured w/e ill fix it when i get the SSD and thought it could just be the HDD having a problem with writing info (dont ask).
I bought the SSD very recently (2 weeks ago) and put it into the computer at the same time installing windows 8 and i am still having the same issue i had before, it isint just as bad but the slow down is still very noticable and when i load into wow very occasionally my FPS drops exceptionally low, this then turns into a complete freeze of the PC.
I have tried the dump files on all different settings, it is currently just handled by the computer.
http://gyazo.com/68b06671caf98aa2e726c602b162e536
This screenshot is my performance tab in task manager at the time of writing this post, i have got nothing but google chrome with 5 tabs / skype / battle net desktop app / steam active and i would love to know if there is anyone who knows their stuff who can identify what is going on with the computer, i just dont feel my ram usage should stay as high as it does (i know ram being used is good) but 99% while running wow in a raid seems a bit extreme.