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Aug 21st, 2009
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CPU usage 100%

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Dell Inspiron 600m (Pentium 1.6 Ghz, 512 MB RAM, 60GB Hard Disk (50% free), Windows XP)

Once I start using internet (dial up), CPU usage reaches 100%. According to Windows task manager, primary users of memory and cpu are opera.exe (firefox and IE as well if I use them), Mcshield.exe, explorer.exe and svchost.exe. I tried changing priority of Mcshield.exe from high to normal but the system didn't allow me. I am not running any windows media player, messenger or p2p exchange software etc.- just simple browsing. Even if I kill opera.exe and stop using internet, CPU usage remains 100%.

I have scanned using McAfee anti-virus. I have already disabled automatic windows updates. Ran a dell tune up program to clean up; tried to defragment disk but the system's analysis was that it wasn't required.

I don't know if it's relevant but my laptop gets quite hot though there hasn't been any warning/automatic shutdown.

Can anyone suggest a solution ? Thanks in advance.
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rookie77 is offline Offline
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since Mar 2006
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Aug 22nd, 2009
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Re: CPU usage 100%

if CPU uses is 100% then your computer is suffering from viruses and spy wares so scan it using anti virus with update. i hope it works.
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ipradip is offline Offline
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Aug 22nd, 2009
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Re: CPU usage 100%

After scanning for viruses and spyware I would get rid of McAfee and install a free antivirus like AVG or AVAST or AVIRA. McAfee is a memory hog and the free AV programs do not use as much memory and work just as well as Mcafee. Myself, I use AVG and I have no problems and I am using a system with similar specs to yours.

PS. Also run Glary Utilities. It is free and it will clean up your pc of useless files and clean your registry.
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slash49er is offline Offline
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Aug 23rd, 2009
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Re: CPU usage 100%

try to use and online antivirus, housecall i suggest
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gkaykck is offline Offline
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Aug 24th, 2009
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Re: CPU usage 100%

Here's a good article on how to fix high svchost.exe CPU usage - http://www.fileinspect.com/fileinfo/svchost-exe/. It's quite long, so can't post ll of it here. Hope this helps.
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Asphodel is offline Offline
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Aug 25th, 2009
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Re: CPU usage 100%

Guys,
Thanks for the replies. I have scanned it (not a single virus/pup etc was found) and run gladys utilities - the problem remains.

I still have a year left on my subscription of McAfee's security center. I can uninstall it but I want to be sure that it is the root of the problem. The thing is that there are multiple files (including mcshield.exe from McAfee) hogging cpu usage and memory and they keep on fluctuating. As I write this, there's a process - System (PID 4) that's in range of 1% - 75% CPU usage. I have checked for svchost.exe and it is not the source of high CPU usage.

Any other suggestions ?
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rookie77 is offline Offline
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Aug 30th, 2009
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Re: CPU usage 100%

Make your system to a bak,then reinstall the system.After that,if the CPU still as 100%,then tell me.
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donglai is offline Offline
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Sep 6th, 2009
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Re: CPU usage 100%

The problem was overheating - got a new fan and everything's back to normal.
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rookie77 is offline Offline
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This thread is solved

Either the thread starter or a moderator has marked this thread as solved. You can most likely trust the responses and answers given. There is most likely no reason for any further responses to be posted here. If you have a related question, please start a new thread in this forum instead.

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