Epson Apex 20020 - Manual (Page 145)

6. If you have been using your hard disk for a long time and
begin to see numerous read/write errors, you may need to
reformat the hard disk. If you decide to do this, follow these
steps:
Back up all the data on the disk using the BACKUP
command (described in the MS-DOS manual).
Follow the instructions in Appendix D to perform a
low-level format.
Follow the instructions in Appendix E to prepare the
hard disk for use.
7. If you have installed a hard disk drive made by another
company in your computer, it may need to be partitioned
and formatted. If this is the case, see Appendix E for
instructions. If it needs a low-level (physical) format, do
that before you partition the disk. (See Appendix D for
instructions.)
Software Problems
If you are having trouble with an application program, try the
following solutions:
1. If the application program does not start, check that you
are following the correct procedure for starting the
program, and that it is installed correctly. If you have a
hard disk and the program is stored in a directory on that
drive, make sure you are logged onto or specifying the
correct directory. If you don’t have a hard disk, make sure
you have inserted the application diskette in the top drive
(drive A).
Troubleshooting 6-11