When I look at performance in nt task manager, I see the physical memory is 1GB and the commit charge at 1.2GB. Then I look at processes and I see that store.exe is using 870MB of memory and taking a lot of cpu time. What is store.exe and why is it using so much resources, and how can I optimize the system?  Thanks..
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SANG501Connect With a Mentor Commented:

Exchange will use as much Physical RAM as possible so it can manage it's own memory instead of the OS. Cheers is correct, this behavior is by design and typically you don't have to worry about it unless you have little physical RAM to begin with.
ahmedbahgatConnect With a Mentor Commented:
store.exe is the exchange infrmation store service, and Exchange is designed in a way that will will use most of the available RAM and will release upon other applications demands, it is a behaviour by design and you should not worry about it

sergenetAuthor Commented:
Thank you for your quick response.
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