TROUBLESHOOTING the MS-DOS-Based Version of Microsoft Backup
If you are running the MS-DOS-based version of Microsoft Backup, start
your computer with the Clean Start function key (F5) and try the
compatibility test again.
If the compatibility test still fails, check the CONFIG.SYS file for
the following settings:
If the buffers and files are not at least 30, increase them to 30 and
save the CONFIG.SYS file. Restart the computer using an interactive
boot (F8). Respond "Y" only to buffers and files, and then retry the
compatibility test. If the test fails again, follow the instruction in
the "Manual Backup to Path Test" section below.
TROUBLESHOOTING Microsoft Backup for Windows
If you are running Microsoft Backup for Windows:
• Run File Manager and format a floppy disk to see if you are having
problems formatting floppy disks from Windows.
• Try running Windows in standard mode and then running the
If the compatibility test works in standard mode but does not work
in 386 enhanced mode, remove any virtual device drivers (VxDs) that
may conflict with VFINTD.386. For example, tape backup VxDs may
conflict with VFINTD.386.
The following software VxDs (loaded in the [386enh] section of the
SYSTEM.INI file) can cause the compatibility test to fail:
NOTE: Backup for Windows may fail by either dropping to the MS-DOS
command prompt, blanking the screen, or hanging the system when it
reaches 99% completion.
Manual Backup to Path Test
If the compatibility test fails, you cannot back up to drive A or B
using the specific drive options. Instead, you must back up to the
When you back up to the MS-DOS path, all your floppy disks must be
formatted before you begin backing up. This feature (backing up to the
MS-DOS path) is implemented in Microsoft Backup to provide maximum
compatibility with the various hardware being produced.
NOTE: Be sure the disks being used for the compatibility test are
formatted using the MS-DOS FORMAT command. The disks may have been
pre-formatted, or formatted using a third-party utility, such as PC
Tools or Norton Utilities. This may cause the compatibility test to
fail. To find out if they were formatted using such a utility, check
the date on the FORMAT.COM in the DOS directory. It should be 3-10-93
for MS-DOS 6.0.
To test backing up to the MS-DOS path, do the following:
• Start Microsoft Backup or Microsoft Backup for Windows.
• Choose the Select Files Button and select approximately 2 MB of
files--enough that all the files cannot fit on one floppy disk.
For more information on selecting files, see the Selecting Files
For Backup Help topic.
• After you have selected approximately 2 MB of files, choose the OK
• In the Backup To box, select MS-DOS Path.
• In the Backup To text box, type A:\ or B:\ and then choose the Start Backup button.
• Change the disk in the floppy disk drive when you are prompted to
• When Microsoft Backup has completed the backup, choose the OK
• Choose the Compare button.
• Choose the Select Files Button and select the files you backed up.
• Choose the Start Compare button.
If the compare successfully completes, you can safely back up to the