Hi guys, my gaming computer was recently outfitted with a new copy of windows 8. After installing and using it for a little over a week, everything was running fine until i joined a server for battlefield 3 and my computer began crashing. After ending the task and restarting the computer, all I have had is multiple issues with my computer and lag. Everything I try to run that should run with relative ease, such as games and programs, now suffer from terrible lag after this incident. The task manager has very little tasks running and my cpu and memory usage are both low to, mind you this is a pretty powerful rig (3.2 ghz quad core CPU, 4 gigs RAM, and radeon hd6850 graphics). Now i fear I will have to reinstall windows and all my programs, even though they only take a measly 60 gigs out of 500 gigs of space on my HDD. Can anyone help me with what can be causing this extreme lag after a single game crash/lag out?