Why is my laptop so charged?

I've owned a Msi Ge73Vr 8rf Raider for some time and have a problem there.

The laptop is really powerful and good but my processor is too overloaded. I have 90 degrees open without a program and if I play 1 minute long Battlefield 4 95-97 degrees. I've already set the fans to the highest power (cool boost), which does not bother me, but it just does not help. I've already tried it with undervolting but my laptop stays so hot! That's why I come from 120 Fps in BF4 at one time to 25 because of thermal throttling what really bothers?

But now I noticed something in the Task Manager, namely that my Cpu has 100% but I calculate a maximum of 45% in the various tasks.

Is that perhaps the reason and have I caught a virus? Do I really have to switch off thermal throttling and take a risk?

Thanks in advance in advance for the answers.

The rest is everything under 0.5% and mostly 0%

This strongly suggests that either malicious software in the system has made wide, or makes a driver conflict difficulties.

https://de.malwarebytes.com/...bytes.com/ just let's do a system scan. Should that alone not help, especially the driver of the graphics card once on suspicion of the system clean and completely new. This is usually the solution to such problems in 9 out of 10 cases.

Thank you

That may be. A virus likes to call home.

Otherwise. Enough free space on C:. 20 GB are allowed to be free.

Have on C: 20.9 gb free should I get more out?