You should not have to make any of those adjustments - hopefully you have not afflicted your system in some way by doing that.
It is normal to see several to many svchost processes running but most of the time their CPU usage should be zero zero with an occasional blip.
With Windows you don't need Process Explorer to figure out what Services are running under each svchost Process and which Service is afflicted - that is now mostly built in to Task Manager, Resource Monitor but no screenshots can be posted here by mere mortals.
A frequent problem is the Service associated with Windows Update (wuauserv) so a quick check would be to go to:
set it to Never check for updates
Clcik OK to save the adjustment
Restart your system and see how things look.
Unfortunately screen shots are not allowed here - at least by mere mortals.
Knowing that under each svchost Process are important Windows Services you can zero in on the Service that is afflicted using Task Manager.
With the PID (Process ID) column enabled in Task Manager note the PID associated with the svchost Process that is running amok (let's say the PID is 1154).
In Task Manger click the Performance tab, the in the bottom click Resource Monitor.
You may need to minimize Task Manager to get it out of the way leavening Resource Monitor open.
Drag the edges of Resource Monitor to make it wide enough to see things.
In Resource Monitor click Services once or twice to expand all the running Services which should be sorted by PID (or click the PID column header to sort by PID).
Scroll though the list of Services until you find the PID that matches the afflicted svchost Process which would be 1154 in our example.
There may be one or most Services running with that PID.
In Resource Monitor look at the CPU column for the Services running under that PID.
If you don't see the CPU column drag the edge of of the Window to make it wider so you can see the CPU column.
You will be able to see the amount of CPU each Service running under that PID is using.
Most of the time the CPU for those Services should be zero so if you have a Service that is constantly consuming much CPU what Service would that be?
Edited by joseibarra, 11 April 2018 - 10:33 PM.