Hello guys , here are my computer charecteristics : GPU : GeForce GTX 750 TI , CPU : Inter(R) Core (TM) i5-4440 CPU @ 3.10 GHz , 8GB RAM , MIcrosoft Windows 7 Ultimate 64 bit . Ok the problem first started while i was playing CS:GO, after 5-10 min of playing it the screen just froze and i had to restart the computer from the button . I tried 3-4 times and sometimes there was also a blue screen. I took my computer to IT specialist who told me that it was my energy supply or something i am not familiar with the terms (sorry for that ) i think it is called PSU , and so however he replaced it with new one and i had the same problem with CS and by the way the teperature was fine i checked it. Something to add is that for example League of Legends was working fine . Ok so on i took my computer to another IT specialist i he preinstalled my Windows and i was afraid to try CS:GO , so i started playing Witcher 3 and it worked fine , but i couldnot play CS:GO. OK the problem was fixed afrter the preinstalation and i had 2 months perfect time with my PC. After that i decided to download the SMITE game from steam and i played it like 2-3 days and the same problem started again . I cheked in forums for solution , i unistalled all my NVIDIA drivers and replaced them with an old version , also tried with the latest driver and no still the same issue . While i am on the internet there is no problem and please help me guys i want to play normaly. And to not have to preinstal my Windows every month. Help