Im familiar with bitcoin mining malware that can get my gpu to 100% but i just made a clean install of windows 10 2 days ago and only downloaded chrome,cam and steam games.
When im using my pc without gaming the gpu is at 0 % while of i leave it on for like 3 or 4 min the gpu usage jumps up to 100%.
When im using my pc without gaming the gpu is at 0 % while of i leave it on for like 3 or 4 min the gpu usage jumps up to 100%.