Extreme lag on opening screen/menu/game

[daedalus871]

not really, only virtual clone drive, truecrypt, chrome, and steam are running usually. There are between 70 and 85 processes running at a time and my cpu almost never spikes 18% idle and usually stays at 0%. Loading windows can cause it to increase some but not much. Games usually make it run at 40% and below; never greater. Without running a game, I'm using 1.26 GB of ram out of my 8 total. If I play a game, that number raises to between 2 and 3 GB but I've never seen it at or above 2.7 GB. My PSU is an Antec CP-850.

edit: The numbers for ram use and cpu load while playing are from when comodo was installed. ram use stays below 1.5 GB and cpu load stays below 30% usually; however, there are spikes to 60% when in the menu. I clicked start a new game and it went to a black screen and nothing more. the music plays fine though(which is odd, the sound usually lags when a game lags like this). I got a whole .5 frames per second in the menu. If I tried to play the game in non-full screen mode, it would just go through periods of "not responding" and the cursor wouldn't move.