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Memory usage at 100% in Windows 7

Daniele Brunengo
on
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Last Modified: 2012-05-11
Hello, I have a peculiar problem in my W7 Ultimate 64bit install.

Lately, once in a while memory usage goes up to 99-100%, and then it goes back down with no apparent reason.

The strange thing is, task manager will show normal memory usage, with the sum of all processes adding to a number far below 6Gb. And yes, it is configured to show processes from all users.

I initially thought that it was Firefox 4.0, because the first time this happened I closed Firefox and usage went back to normal almost instantly.

But then it happened again, and closing Firefox wasn't useful, still had to wait a few minutes for the situation to fix itself.

Is there a way to find out the cause of this?
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