SVCHost is using about 80 % of CPU and memory resources.

Computer with Windows Vista is running very slow. I cleaned viruses and defrag hard drive and CPU and memory utiliztion is still very slow. I noticed that svchost is using about 80 % of cpu and memory resources.
armandocgAsked:
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John HurstConnect With a Mentor Business Consultant (Owner)Commented:
In task manager, check the option to show all processes for all users. You should then see lots of svchost processe (a dozen or so). All mine are running at zero CPU; most do not use much memory; one (svchost SYSTEM) is using about 175Mb of memory which is no big deal.

Is one, or more than one, svchost running at excessive CPU?

You might try scanning with Malwarebytes as you may not have gotten rid of all the viruses.    ... Thinkpads_User
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barrykflConnect With a Mentor Commented:
I expereincde similared before. Assume your PC is clean and no viruse first , Is your windows update stuck on somewhere try stop the windows udate to see if improve first.

there must be some process block the memory and sevice running, if it return to 0 % then try manual update .


If it still the same , then it is cause by other process u have to make sure any new service and stop one by one.
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SirjacksinurboxCommented:
Sounds like it may be a Windows Update hang. If you can determine which process that svchost process is associated with, that will help to narrow down the problem.

In case it is associated with Windows Update, please try this Microsoft Hotfix: 916089

Hope this helps, let us know if it doesn't.
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armandocgAuthor Commented:
How can I find out what processes are associated with svchost?
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John HurstConnect With a Mentor Business Consultant (Owner)Commented:
You need to add PID in the columns that Task Manager displays.

Then this article is a good article with directions to relate svchost PID to a function.

http://www.wiredprairie.us/journal/2006/10/how_to_identify_whats_really_r.html

... Thinkpads_User
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SirjacksinurboxConnect With a Mentor Commented:
This one explains it through the Task Manager that is associated with Windows Vista and 7. It's a little more direct approach to finding exactly what each svchost process is associated with.

What is svchost.exe And Why Is It Running?

Hope this helps.
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armandocgAuthor Commented:
I scand for viruses and tried everything and finally decided that the only thing left to do is reinstall the OS from scratch
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John HurstBusiness Consultant (Owner)Commented:
Thank you, and I was pleased to assist you with this. .... Thinkpads_User
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