svchost.exe high memory usage and 100% CPU usage fix
( http://www.techracket.com/solution-fix-svchost-exe-high-memory-usage-cpu-usage/ )
07/06/2015

     Solution 1: 
Identify which services in svchost does consume more RAM and CPU in Windows 10/8/7:

1.     Run command (Win Key + R), type services.msc
 If windows update service caused the svchost high memory or CPU usage, right click on the Windows update from the service list and select properties.
 In the General tab, select the startup type as “Disabled” from the dropdown and hit the OK button. This setting disables automatic Windows update in your machine, and you have to perform the update manually if you need.

2.     If the CPU hog caused by wudfsvc, then right click on the Windows Driver Foundation and select Properties. In the General tab, change the startup type as “Disable” and hit the OK button.

     Solution 2: 
Microsoft Windows update fix:
( könnte, muss aber nicht die Lösung bringen. Richtet neue Policy Group ein etc. )
-> Windows Update Client for Windows 7: June 2015
   https://support.microsoft.com/en-us/kb/3050265