svchost.exe problems?

Go google "Process Explorer" ... its a more detailed task manager. Run it ... you'll see a few svchost.exe's running. And you will also see what sub service is running under it ... which should help you determine what exactly is clamping down on the cpu. The normal windows task manager doesn't allow you to dig that far down.

The problem is that AVG and Malwarebytes do not clean this infection out of your reproducible files. Next time you start the computer that problem reproduces itself. the only program I have found that really gets rid of the reproducible files like that is Stopzilla form Is3 labs. There is a trial version that will quarantine rather than remove these things. Be aware this program is a resource hog and takes quite a while to do a full scan because it is very thorough. Before you go that far you could try Spybot S&D from Safer Networking. This can sometimes be effective if you set it to advanced mode and schedule a scan at next start up. That will allow only those files needed to run the computer to load. Then it scans and removes what it finds before those reproducible files start up.

Download E Set smart security from the website given in the source below. License is also given there. Update the antivirus and scan your computer.