How old is this computer and have you kept up with the maintenance ?
Blow out the dirt from the vents etc.....
I have a user at my company whose ThinkCentre is behaving strangely.
-GPU usage goes up randomly
-Seems to suddenly and randomly stop using almost any CPU and use 100% GPU
-Wrote a batch file to run that resets GPU usage (command: devcon /r disable PCI\CC_0300 ; devcon /r enable PCI\CC_0300); this resets GPU and works for a while before manifesting again.
-One thing that sets this behavior off is inverting colors and uninverting, and starting up. Otherwise there seems to be no consistent trigger for it.
Steps taken so far:
-Updated, uninstalled, and reinstalled his graphics drivers.
-System Maintenance Troubleshooter - found no issues.
-Booting into a clean state by disabling every MS task possible; same behavior.
-Running diagnostics on boot; all tests came back flawless.
He is using a ThinkCentre M900 and the graphics is the onboard Intel(R) HD Graphics 530. He is running Windows 10 VLK, build 1709. There are no games or graphics-intensive programs - he is just programming, mostly in VisualBasic.