Question CPU usage at 100%, drops when task manager opened

Nov 25, 2018
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Hi everyone! My CPU usage is at 100% and when I open the task manager it near instantly drops to around 10-15%.

I''ve had this for a while now, actually. It was just today when I decided to check it out online and found out multiple posts saying it's some kind of virus. one of the posts said that an igfxupdate.exe file is doing this but i don't have that file in my system32 folder. another said it was conhost.exe but it doesn't seem like it's the problem..

any help would be greatly appreciated!