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Task manager DOESN'T show what's stealing my CPU time!

by gdavisloop / August 5, 2009 4:07 PM PDT

My XP SP2 system has lately had something stealing CPU time.
It often shows up as "50%" of CPU time used, but the graphs show 100% and that's how the system acts. (even mouse movements are erratic).

But the idle process can show 99% and none of the listed processes are using the time.

I've especially had this problem when trying to use an add-on SATA card, but other times as well.

There's usually no problem when I first start up the system, but after a certain amount of time. I've already tried Norton Virus scan, Windoctor and Diskdoctor.


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by R. Proffitt Forum moderator / August 5, 2009 9:20 PM PDT

I've noticed that for years. It's something of a mystery why that issue was never addressed by MSFT.

Say, did you have a question to ask?

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Tried Disabling Norton?
by Grif Thomas Forum moderator / August 6, 2009 6:24 AM PDT

We find such issues with both Norton and McAfee. The automatic update programs for both can really steal a lot of performance from the computer. Sometimes it takes a complete uninstall to see the problem disappear.

Hope this helps.


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Wouldn't virus scanners show up?
by gdavisloop / August 6, 2009 4:20 PM PDT

If a virus scanner was using the time, wouldn't that show up in Task Manager?

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(NT) Not Necessarily.. So You Tried Disabling It?
by Grif Thomas Forum moderator / August 10, 2009 4:07 AM PDT
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