My friend has recently upgraded to windows 10, since then his computer has been going to standby after playing games but cannot leave standby, having to turn off his PC entirely. Games that have crashed has been War thunder, men of war assault squad 2, world of warships, and other games. He thought it was an overheating issue at first so he bought a new water cooler and case for better air flow, but this proved unsuccessful, still crashing in games. The new cooler he bought is a corsair H55 Any help would be greatly appreciated. Thanks :3