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Process Explorer is a useful way of determining how much RAM in your system is actually being used.

How do I find out how much RAM is being used?

I'd grab a copy of SysInternal's Process Explorer, and you'll be able to see what each process is using. "Working Set" is perhaps the most interesting snapshot of current memory usage per process. If you View, System Information it'll show an overview.

Article C2074 - June 19, 2004 « »

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Leo Leo A. Notenboom has been playing with computers since he was required to take a programming class in 1976. An 18 year career as a programmer at Microsoft soon followed. After "retiring" in 2001, Leo started Ask Leo! in 2003 as a place for answers to common computer and technical questions. More about Leo.

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4 Comments
miles
December 29, 2004 8:02 AM

just how do I determibe how much of my ram is being used at the present compared to how much ram is in my comuter

Leo
December 29, 2004 8:23 AM

Both process explorer, mentioned in the article, and Task Manager (normally pops up on ctrl+alt+delete in Windows XP) show summary information that includes this.

vinit
March 14, 2008 12:25 AM

hi tell me about how can i boost up my pen drive of 1gb version 2.0 as RAM in vista oprating system

George
February 14, 2009 11:12 AM

I recently purchased an antivirus software and tried to installed it into my computer.The system requirements is 256MB OR 512MB(recommended).I currently have 256MB of RAM in my computer but when I try to install the software it tells me my virtual memory is to low for the program.

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