Svchost.exe running at 50% cpu usage

Q:I had a friend over looking stuff up on the net on my system. One of the sites he was on was infected but my antivirus blocked it. When I restarted my computer it was running at a constant 50% cpu usage.

I went to task manager and saw one of my svchost.exe running at 50%. I closed it out then my cpu restarted on its own. When I got back on its still running at 50%. I tried scanning for virus and malware but it showed up as nothing. I used avast and malwarebytes.

A:svchost is part of the system, so closing it doesn’t help. You have some damage left over from the virus.

1–Are you running more than one A-V at once in the background?
2- What’s your firewall?
3–Run sfc /scannow to restore your Windows files.
4–Run CCleaner

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"Clean up your Registry to keep your PC in tip-top shape. The more software and hardware you install and uninstall, the more full your Registry gets. A great deal of software doesn't clean up after itself, and leaves behind old and obsolete Registry entries...

The more your Registry fills with this junk, the slower your PC gets and the more often you'll have system crashes."

Preston Gralla
PC World


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