My game freezes from time to time and it went to a point where my pc began to crash. That´s the problem. Sorry for not specifyingIs your CPU overheating? Check your temperatures! Your PC can not crash from a high CPU usage, but from overheating. If your CPU usage is now higher than it used to be then you have either more background stuff running in windows or you lowered some GPU intense settings which would lower the gpu demands and increase your fps. This would then also result in a higher CPU usage as the CPU has to calculate these additional fps too. If it is not overheating, then it could be a power supply issue. A higher usage does also require more power. But that's pretty unlikely because your CPU has a very low power consumption. Besides that: 80% CPU usage in GW2 is completely normal for a quad core CPU like yours. Thanks for the info. My CPU wasn't overheating. I don´t know what was the problem, but I solve it recently because I formatted my computer and now the game and other stuff work great.