The Task manager was where I looked first ... nothing unusuall there .. here is a pic of the processes running before i start browsing or playing games:
(srry for the language, i'm from slovenia)
[ATTACH=CONFIG]630.vB5-legacyid=1319[/ATTACH]
My Percantage of use is currently at 31% when i'm not doing anything...
Also, i have 3 Gigs of RAM on my PC
As for the processes that are showing more than 400,000K .... Games mostly (for example skyrim shows 669,000K)