splinter cell PC shutdown

Avinoam73

Distinguished
May 1, 2012
589
1
19,015
i play the game, and then witout warning and completely nexpected the game crashes and shuts down my pc. this is a new problem (i've already finnished the cmapaign witout it happening), but now i can't finnish a co-op mission, an online game, nor any of the campaign missions sinvce i have to restart my copmputer.
windows 8.1 , sager NP9150
please help, i have this problem for over 2 months now and is till can't find a sulotoion
 

Avinoam73

Distinguished
May 1, 2012
589
1
19,015
my pc is not overheating, i've checked. it isn't dirty, and for comparison, bf4 runs on ultra on 50+ FPS all the time without showing any signs of weaknes. my hardware (laptop):
sager NP9150
i7-3160QM
R 7970M 2GB
8GB ram
WIN. 8.1 64 bit