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Sometimes (~once-twice a day) I experience slowdowns (up to freezing for 5-10 seconds) and I don't know their cause. I tried looking into Process Explorer, but it shows only current rates and history columns are of no help either.

So, what is the right way to find the answer to the question "what have just slowed down the system"?

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What version of Windows are you running? –  Dez Mar 14 '12 at 16:12
    
This may have already been answered: stackoverflow.com/questions/69332/… –  Dez Mar 14 '12 at 16:17
    
Remember, you can hover over the history graphs to see what application used the most of that resource at the given time. –  Oliver Salzburg Mar 14 '12 at 16:28
    
@Dez, Windows 7 –  Fixpoint Mar 14 '12 at 21:29
    
@OliverSalzburg, doesn't help - the graphs are showing that the load was minimal. –  Fixpoint Mar 14 '12 at 21:30
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2 Answers 2

You can download Process Explorer. This should help in showing which program is using up your system resources.

Or try Process Monitor, which lists all the processes that are running. You should be able to determine what program is slowing down your system with both of these tools.

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I'm already using Process Explorer. –  Fixpoint Mar 14 '12 at 21:31
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If Process Explorer isn't enough, you might want to look into xperf.

Sadly, I don't have the time right now to go into usage details, but maybe this video and this guide will get you started in the meantime.

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