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I have Windows 7 64-bit Professional running on Intel Core 2 Duo, 4 GB RAM and nVidia 1 GB graphics card. The Task Manager shows only 3 GB of RAM, so I am assuming 1 GB is used by the graphics card. After I use the system for about 30 minutes, all of the memory gets used up and the system is responding very slowly. When I check the Task Manager, the CPU usage is low, but the memory is above 95%.

I cannot identify the process which takes up memory. But this started happening after an update installed service pack 1.

What might be the problem?

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Are you sure the memory isn't just used for caching? –  Mr Alpha Apr 5 '11 at 15:57
    
it can be a memory leak problem try to close your window gadgets for some time to see if it is a problem with any gadget. And if the problem solves this way then run your gadget one by one after some time. –  kaykay Apr 5 '11 at 16:09

1 Answer 1

Use Resource Monitor (memory tab) to see if you can find the process or program using all the memory

All Programs > Accessories > System Tools > Resource Monitor

or a run command

resmon

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