Things You Should NOT Do!!


Never ever using your Startup Disk/Rescue Disk/Boot Disk...whatever you want to call it, that was made with your Computer to boot someone else's system. Or Visa Versa.

You must ask yourself these questions because of conflicts between different Windows Versions.

1. How was the OS setup on each system? Was it a retail version, floppy or cd rom and was a floppy setup disk used? Why is this important?...simple, the version of command.com in each is different, but also if certain fixes, upgrades and updates were used, command.com is updated with them. There is a caveat here though...

If the system was originally setup using DOS, booting through a config.sys and autoexec.bat created in DOS and a DOS directory is present, this entire directory needs to be removed when using FAT32 and the originating command.com replaced.

2. If your friend is using a prep disk or emergency disk created on his system, and his system happens to have been setup with the prep disk that came with OSR2-B (the second release) or OSR2-C (third release and later) and he attempts to boot another system that was originally created in DOS first, the command.com file is changed and the MBR modified accordingly. In essence the system is viewing it a new setup taking place and the first character in the MBR is changed to a "~".

3. Using Windows 98; NEVER use someone elses VMM32.VXD

4. NOTE: Deleting these files will prevent Windows 98 from being uninstalled.

NOTE: Unless you've followed the steps outlined below, since Windows 98 installs a new file system, in addition to all the program files, it is recommended that you reformat your hard disk to completely remove Windows 98.

Unless you were running FAT32 before you installed Win98, once you convert to FAT32 using Win98's Drive Converter utility you won't be able to uninstall Win98. You also can't uninstall if you compress your hard drive using DriveSpace after you install Win98. You won't be able to Save System Files during setup if you're installing to a new directory, performing a clean install, installing to a compressed drive or running a version of MS-DOS that's older than 5.0.

Now, on with Removing Windows 98

Saving System Files: Windows 98 Setup offers users the option of backing up their previous version of Windows in case Windows 98 needs to be uninstalled later. To enable this option, you must select the Save Your System Files option when prompted during Setup. Setup will then create the following hidden files necessary to uninstall Windows 98:
Winundo.dat
Winundo.ini
Winlfn.ini

NOTE: Deleting these files will prevent Windows 98 from being uninstalled.

If any of the following apply, you will not be able to Uninstall Windows 98, and Setup will not prompt you to Save System Files:

Your current Windows installation is on a compressed drive.
You are installing to a new directory or a clean install with no previous version available.
You are running a version of MS-DOS earlier than 5.0.
NOTE: The files necessary to remove Windows 98 must be saved on a local hard drive.

You cannot save them to a network drive or a floppy disk. As long as two or more drives have adequate free space, you can select the drive to which to save the uninstall information.

There are also several actions that could prevent Windows 98 from being uninstalled after Windows 98 Setup is complete. The following is a list of items that will cause the uninstall information to be removed from your system:
Converting your hard disk to FAT32
Compressing your hard disk with DriveSpace
NOTE: These utilities should warn you that the uninstall information will be lost before they perform conversion or compression.
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