I agree with the above post
I had this problem of the svchost.exe using 99% of my processor, much like you guys . And i do realise these are old posts, but when i had this problem i came here and read them to see if i could fix my problem, to which, i could not.
I tried many things to no avail. But what i did find is a way to stop it by simply turning of the "Automatic Updates".
Once i did this the processor immediately dropped to about 2 - 4% idle speed.
There are 2 ways you can complete this task.
1. Click Start/Control Panel/Automatic Updates and select "Turn off Automatic Updates" then click Apply and Ok.
or
2. Click Start/Administrative Tools/Services and right click the "Automatic Updates" service and Disable or Stop
I did both just to be on the safe side although i would recommend periodically updating you windows software manualy.
Hope this helps someone like it did me
