How to Fix the Error: Your System Is Low On Virtual Memory

If you have ever encountered the error:

Your system is low on virtual memory. To ensure that Windows runs properly, increase the size of your virtual memory paging file. For more information, see Help.

You probably have your Page File mis-configured.  There are several things you can do to speed up your system and avoid this error.

With virtual memory, the computer can use hard disk space as random access memory (RAM). The computer uses virtual memory to augment the ordinary RAM that is installed on the computer. If you reduce the size of the paging file, the program may not start correctly or may not start at all. This behavior may occur even if the computer has a large RAM.

Windows 2000
  1. Right-click My Computer, and then click Properties.
  2. In the System Properties dialog box, click Advanced
  3. Click Performance Options.
  4. In the Virtual memory pane, click Change to increase the paging file.
    Windows 2000 requires an Initial value of 126 MB for debugging.
  5. After you change the setting, click Set, and then click OK.
  6. In the System Control Panel Applet dialog box, click OK to the following message:

    The changes you have made require you to restart your computer before they can take effect.

  7. Click OK to close the Performance Options dialog box, and then click OK to close the System Properties dialog box.
  8. When you are prompted to restart your computer, click Yes.
Windows XP
  1. Click Start, right-click My Computer, and then click Properties.
  2. In the System Properties dialog box, click the Advanced tab.
  3. In the Performance pane, click Settings.
  4. In the Performance Options dialog box, click the Advanced tab.
  5. In the Virtual memory pane, click Change.
  6. Change the Initial size value and the Maximum size value to a higher value, click Set, and then click OK.
  7. Click OK to close the Performance Options dialog box, and then click OK to close the System Properties dialog box.

On Windows Vista you can improve system performance with Ready Boost, or by adding a ReadyDrive. You may want to read Drastically Speed Up Vista On Your Laptop