Watch the video:
Timestamps:
0:00 - Explanation
0:30 - What is causing 100% CPU usage?
0:42 - Cleaning virus/malware/rootkits
1:15 - Free AntiVirus options
1:46 - 1: Scanning PC with AntiVirus
2:22 - 2: RKill & AdwCleaner
4:07 - What is svchost?
4:46 - 3: Find what is causing 100% CPU usage
8:30 - Stopping bad driver/service
Windows 10 maxing out with “svchost.exe” or “Service Host:…”? Unable to use your computer normally because of it? This simple video explains what they are, what they do and how to fix the issue. By the end, you should no longer be affected by Svchost or Service Host maxing out your PC.
RKill: https://www.bleepingcomputer.com/download/rkill/
AdwCleaner: https://www.bleepingcomputer.com/download/adwcleaner/
Process Explorer: https://docs.microsoft.com/en-us/sysinternals/downloads/process-explorer