MS-DOS 6 Upgrade Setup May Delete CONFIG.SYS and AUTOEXEC.BAT (97416)
The information in this article applies to:
• Microsoft MS-DOS operating system 6.0
This article was previously published under Q97416
If you use the /M parameter when you install MS-DOS 6 Upgrade onto a
machine running Stacker (manufactured by STAC Electronics) or
SuperStor (manufactured by AddStor, Inc.), your CONFIG.SYS and
AUTOEXEC.BAT files may be deleted from the host and compressed drives.
As a result, when you restart your computer, the disk-compression
software does not load and compressed data is not available.
If the files are deleted, the following error message appears twice
Error reading file
In addition, you may be left with AUTOEXEC.NEW and CONFIG.NEW files in
the root directory of the boot drive.
To work around this problem, restore your original files with the
• Restart your computer with the MS-DOS 6 Upgrade Setup Disk 1 in
• When "Starting MS-DOS..." is displayed, press the F5 function key.
• Remove Setup Disk 1 from drive A and insert Setup Disk 3.
• Run Undelete by typing undelete c:
at the MS-DOS command prompt and then pressing ENTER.
• When you are given the option to undelete your CONFIG.SYS and
AUTOEXEC.BAT files, press Y.
• Restart your computer.
• When Stacker loads and prompts you with the following message,
Would you like Stacker to update the file(s)?
If you have the AUTOEXEC.NEW and CONFIG.NEW files in the root
directory of your boot drive, you can rename these files as
AUTOEXEC.BAT and CONFIG.SYS. To do this, type the following at the
MS-DOS command prompt, pressing ENTER after each line:
ren autoexec.new autoexec.bat
ren config.new config.sys
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