Memory Leak? or Something Else?

[Burnout81]

hello when i am playing Games after a couple of hours my memory will slowly rise to 99%usage slowing the entire system down until i have to reboot at the moment it has only been during battlefeild 4 and hardline as other games i play are mostly 8bit.

after i exit the game the memory stays high making it impossible to do anything, ive read many places that it is a win8.1+AMD card issue. but have also seen general memory leak threads suggesting chrome has some problems sometimes, although i tried with firefox and had the same problem

i am unsure if i just have too little RAM as idle after reboot my system is 30-40% add on to that a game like battlefield and it usually sits at 5-6gb in use during gaming until the problems arise

any help appreciated

my specs at the moment are
i5 3570k stock
R6950 2gb
8gb 1600'Mhz RAM

 

[Burnout81]

I tried the Regedit thing before after seaching through google posts and it didnt seem to help

in task manager the highest few processes are chrome and spotify after battlefield but they seem to be normal in their usage, when i exit battlefield the process is left greyed out in te list though, but killing the process doesnt free any memory

the problem is that it is very inconsistent i can sometimes play with no trouble for a while and others it will happen after only a few rounds in game

 

[Burnout81]

umm im not sure tbh , if you mean my Virtual memory? its set to automatically manage but was also set to something like 8gb before i changed it to auto

ive heard theres no problem with Nvidia cards and the memory leak issue
and since im using a pretty old card (6950) maybe i could upgrade a little earlier to a 970
i was going to wait for the next cards to come out and upgrade then, but im having to restart my PC every 30-40 mins at the moment while playing battlefield