i have noticed this especially just a few minutes ago when i shut down starcraft 2, which i am running maxed out at 1920 x 1080 (specs below), basickly as the title implies when i shut down the game the entire computer becomes unusable for a few minutes sometimes its 3 minutes sometimes its so bad i have to restart it. i tried running msi afterburner on the side and after i shut down the game i monitored all the cpu and gpu usage it never went anywhere above 30 - 40 % ram stayed at 1.5 gb usage, i am really thankful for any support if you have any question i will be happy to answer them.
cpu : amd fx 8320 oc to 4.0 GHz from 3.5
ram : 8gb
gpu : gtx 670 gigabyte oc 500 on memory clock 100 on core clock
psu : 500 watts evga
mobo:990fxa gigabyte ud5 r 3.0
hdd speed: 7200rpm on is 160 gb the other is 1 tb both where being used, there is a third drive which only had 50 gb but that is not used for gaming.
p.s. this is running windows 7 64 bit
cpu : amd fx 8320 oc to 4.0 GHz from 3.5
ram : 8gb
gpu : gtx 670 gigabyte oc 500 on memory clock 100 on core clock
psu : 500 watts evga
mobo:990fxa gigabyte ud5 r 3.0
hdd speed: 7200rpm on is 160 gb the other is 1 tb both where being used, there is a third drive which only had 50 gb but that is not used for gaming.
p.s. this is running windows 7 64 bit