Which MS-DOS Version Should I Boot to Run MS-DOS Setup? (77984)
The information in this article applies to:
• Microsoft MS-DOS operating system 5.0
• Microsoft MS-DOS operating system 5.0a
• Microsoft MS-DOS operating system 6.0
• Microsoft MS-DOS operating system 6.2
• Microsoft MS-DOS operating system 6.21
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q77984
When upgrading to MS-DOS 5.0 or later on a hard drive, the Microsoft MS-DOS
Upgrade SETUP.EXE program should be run in the version of MS-DOS that is
currently installed on the machine. Booting the machine with another
version of MS-DOS may cause improper access of the hard drive, leading to
file corruption. Additionally, SETUP may make incorrect assumptions about
which OEM-modified utilities to preserve.
If you are reinstalling MS-DOS 5 or later, you do not need to reinstall
your previous MS-DOS version before running SETUP.
If the hard drive has MS-DOS 2.1 or earlier installed, contact your OEM
(original equipment manufacturer) as to the availability of a version of
their MS-DOS 5.0 or later for your machine. If you have version 2.11 or
later, you can boot with this version and install MS-DOS 5.0 or later to
floppy disks using the SETUP /F command. MS-DOS 5.0 or later can then be
installed manually from this working set of disks. However, this may
require reformatting the hard disk, depending on the partition structure
currently in use.
If installing MS-DOS version 5.0 or later (not MS-DOS Upgrade), boot from
disk 1 to install MS-DOS. The original equipment manufacturer (OEM) version
of MS-DOS has a different Setup program that requires MS-DOS to be booted
before installing it.
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