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Windows 98 > Getting Started With Windows 98

Upgrading to Windows 98 - a Guide

By: Arie Slob

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To help you perform a smooth Windows 98 installation, we'll provide you with all the information you need to know in this Upgrading to Windows 98 Guide.


Clean install or upgrade?


Check your current configuration


Choose your Setup options


Disable Software


Backup your Data


Run ScanDisk


Get ready


After the Installation

When you try to upgrade your Microsoft Windows 95-based computer to Windows 98, you may receive the following error message:

	   Warning SU0168
	   Your computer already has an operating system installed, which cannot be
	   upgraded by this version of Setup. Please obtain the Windows 98 Upgrade.

This can happen if an incorrect version of the Setupx.dll file is currently loaded into memory. To fix this, run Windows 98 Setup from MS-DOS mode:

  1. Select Start > Shutdown, and select Restart the computer in MS-DOS mode, then click OK
  2. At the command prompt, type the following commands, pressing Enter after each command:

    	   ren setupx.dll setupx.old1
    	   ren setupx.w95 setupx.old2

    Note: If the Setupx.w95 file is missing, extract a new copy of the Setupx.dll file from the current operating system's installation media to the \Windows\System folder.

    See Microsoft Knowledge Base Article 129605 for information about how to extract files.

  3. Restart your computer

If you receive CAB file errors during setup, see this troubleshooting page.

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