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The System process running on my Windows 7 installation uses almost 50% of CPU arbitrarily. I monitor the process with Process Explorer from Sysinternals.

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System Process eating CPU

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What could be the problem?

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This isn't programming question. It belongs on SuperUser. – Jeffrey Blake Aug 12 '11 at 12:39
Please try this procedure and report back in the comments section. – Tom Wijsman Aug 12 '11 at 12:43
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migrated from stackoverflow.com Aug 12 '11 at 12:41

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1 Answer

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Without a profile trace from Performance monitor, this is impossible to nail down. AFAIK, the line you boxes is a standard device driver call(DPC stands for deferred procedure call IIRC).

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