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Article ID: 126448 - Last Review: November 15, 2006 - Revision: 1.1

This article was previously published under Q126448


When you try to start Microsoft Windows 95 you receive the following error message:
Not enough extended memory available to run Windows.

Quit one or more applications to increase available memory or restart your computer. Press any key to continue...


This error message can occur if you have configured your computer to create a RAM drive larger than 15 megabytes (MB). The error occurs even if your computer has enough memory to create the RAM drive and still meet the memory requirements for starting Windows 95.

A RAM drive larger than 15 MB is allocated all the available extended memory below physical address 16 MB. To start Windows 95 on most computers, some memory below 16 MB is necessary for DMA buffers. If all the memory below 16 MB is allocated to the RAM drive, Windows 95 cannot start.


To correct this problem, decrease the size of the RAM drive to less than 15 MB. To do so, follow these steps:
  1. Restart your computer. When you see the "Starting Windows 95" message, press the F8 key and then choose Command Prompt Only.
  2. At the command prompt, type
    edit c:\config.sys
    and then press ENTER.
  3. Locate the line that contains RAMDRIVE.SYS. Change the line so that it contains a value lower than 15 MB. For example, to use an 8 MB RAM drive, change the line to read:
  4. Save the CONFIG.SYS file and then quit the editor.
  5. Restart your computer.

  • Microsoft Windows 95
kbenv kberrmsg kbprb KB126448
Retired KB ArticleRetired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
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