Microsoft KB Archive/237587

= Do Not Install Windows 98 over Windows 98 Second Edition =

Article ID: 237587

Article Last Modified on 1/24/2007

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APPLIES TO


 * Microsoft Windows 98 Standard Edition
 * Microsoft Windows 98 Second Edition

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This article was previously published under Q237587



SUMMARY
When you attempt to install Windows 98 in Windows 98 Second Edition, you may receive one of the following error messages:

Setup has detected that you are running a version of Windows that already includes the updated files or enhancements you are attempting to install. For more information, click Details. Click Cancel to return to Windows 98.

This CD-ROM is from an older version of Windows than the one you are presently using. Setup functionality from this disk will be disabled.



MORE INFORMATION
If you install Windows 98 over Windows 98 Second Edition from MS-DOS, you do not receive any error messages. There is no version checking in MS-DOS mode.

If you install Windows 98 over Windows 98 Second Edition, the computer may become unstable. Many files are replaced, but the newer registry entries are not removed or overwritten.

The Windows 98 Second Edition Step Up version does not install from MS-DOS.

