Windows 10: explorer.exe using 50% of my CPU when task manager isn't opened

So lately I've bee having a lot of lag on my PC, and I have figured out why.explorer.exe has been using 50% of my CPU when the task manager is closed, when I open task manager it all turns to normal, I am pretty sure that this may be Malware, but I'm not too sure, I've tried everything online, /sfc scannow didn't work, a normal scan also didn't work.I am completely lost in this and I'm thinking of completely resetting my PC if I can't find a fix to this.

:)

 

CPU usage remains above 50% until i open task manager

Hello i noticed that my CPU was being used more than 50 percent until i open task manager. Just as if i am browsing or working on excel , i see my CPU usage spike from 10% to 60% and if i try to see which app or processor is consuming the CPU through task manager the CPU usage drops below 10%. Even while playing games, i monitor using msi afterburner CPU spike from 25% to 75% all of the sudden and even if i close the game morethan 50% of CPU will still be on use. Thenif i open taskmanager then only the CPU usage drops to normal. But if i keep task manager open and do anything gaming, browsing the CPU usage will always be normal. The issue is only seen when task manager or any process monitoring software is turned off.

 

Groove Music taking 50-60% of CPU in task manager


As the title says, while playing music the Groove Music in task manager is taking up 50-60% of my CPU. I doubt it is supposed to be this much does anyone have any suggestions?

 

Problem: Explorer 50% cpu usage


Every day, at intermittent times unrelated to anything I do [it happens when I'm doing nothing], Explorer starts running with each core at about 50% cpu usage, and does not stop. Temperatures and fan speeds rise, fans become very noisy.

Speedfan indicates core temps rise to ~ 70 degrees C, "Temp1" rises to 75 - 80 degrees, fan 1 speed ~ 4000rpm,
fan 2 speed ~ 2500 rpm.

I have just installed Windows 10 so it seems it could not be caused by a virus/malware.

In windows 7 forums some users found the problem was caused by a corrupted file:

Explorer.exe 50% CPU usage - Windows 7 Help Forums

Since my problem is intermittent is it unlikely to be caused by a corrupted file?

I can't use the solution suggested in the W7 forums because when I kill explorer I lose my desktop.

I ran diskcheck on both my hard drives and it reported no errors found.

Any suggestions would be welcomed.

Can someone please explain why a corrupted file would cause explorer to run at 50% cpu usage?