How to Calculate Virtual Memory Size

Written by alex zang
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How to Calculate Virtual Memory Size
You can increase your RAM by buying it and installing it into your computer. (ram 2 image by PeteG from

When Windows opens a program, it distributes a certain amount of random access memory (RAM) to the program in order to keep it running smoothly. RAM is hardware installed into the computer and cannot be changed--if you only have 512 megabytes (MB) of RAM installed, that is all you can use. Virtual memory is used when RAM runs out, and can be anywhere from one and a half to four times the size of your RAM--but it does run slower. For this reason, it is important to know how much virtual memory your computer has.

Skill level:


  1. 1

    Select the "Start" button in the lower-left hand corner of Windows. This will bring up a new menu.

  2. 2

    Click "Control Panel." This will be on the right-hand side of the Start menu.

  3. 3

    Click on "System."

  4. 4

    Find "Advanced System Settings." This is the panel that gives you all the information on how your computer is running, including RAM, virtual memory and processing speed.

  5. 5

    There are five tabs at the top of the Advanced System Settings window. Click on the one that says "Advanced." This will bring you to a new page, with three boxes, one of which says "Performance."

  6. 6

    Click on "Settings" in the Preference box. This opens a new window which will have three tabs at the top: "Visual Effects," "Advanced" and "Data Execution Prevention."

  7. 7

    Select the "Advanced" tab. Your virtual memory will be listed in a box near the bottom of the tab.

Tips and warnings

  • Virtual memory can be changed in the same place where you learn to calculate how much you have.

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