Question A crazy amount of slui.exe's are open and i can't close them.

[Northyy]

I was using my PC as normal and it started running super super slow after a while, so i go to my task manager and i see an insane about of "Windows Activation Clients" or slui.exe's running, i've tried closing them normally, ending process tree and restarting my pc, but they won't close and just start instantly on startup. I'm not sure what else to try because i want to try avoiding re-installing windows, I also have no idea what caused this

 

[rgd1101]

try booting to safe mode?
malware scan?