So with my bad luck before 3 hours my pc ram usage was 5 out of 8 without any programs exsept skype and u torrent so i decied to restart it before 10 mins and the pc started very slow it started hard lag and when it came to desktop i coudnt do anything it aways start fast without problem now its loading 1 min in desktop and it pops windows explorer has stopped working and am maaaaaaaad cause i wanted this stuipid piece of metal to get all new games on 60 fps and more so i was getting those days new gtx 770 pny gpu and new psu... why is this happening to me...... current specs i5 3350p gt 640 1 tb hdd win 7 professional any help will be appreciated!!!