Hello guys. I have a problem for over a few months. The proble is: I can't run league of legends, I can't run discord, I can't run certain apps and games, browsers like Opera and Chrome crashes, I can't use Nvidia Geforce Experience, and after 10-15 minutes, maybe 1-2 hours, depends, I get blue screens with the following messages: "Driver_ISQL_NOT_EQUAL_OR...", "CRITICAL SYSTEM CORRUPTION","INVALID K_MODE", I tried to reinstall the windows, I reinstalled, same problem, now I reinstalled into WIndows 8.1, same problem. I used programs like memtest86(all good), Intel CPU Diagnosis(all ***), HDD Diagnose(all ***). What can be the problem because is so annoying..