Process in Windows uses my whole cpu, how to identify

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For a while now my windows machine goes into full load using all of my cores (i7-930) for a few seconds, this is quite annoying since it induces fps drops in gaming and general laginess when working.

Is there a log or a tool that can log the cpu usage ? When I try the task manager it just never shows a single process at 100% even when it says 100% cpu usage.

Anyone an idea ?


Download Process Explorer (A tool like Task Manager but way more powerful).

You can see a list of all the process and their CPU usage, and other useful information (CPU time, CPU history, etc…) for diagnosing many issues with your computer.

Process Explorer main window

Note: As Tom Wijsman pointed out, you must run as with admin privileges to see the processes from all users

Run Process Explorer with admin privileges

Probably this process is not running under your user. Select “all users” in your “processes” pane. Depending on your OS version there is a checkbox or button labelt unambiguously.

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