Epson ActionPC 2000 Read This First Manual page 54

Restoring original system files
The root directory of your hard disk drive (C:\) contains the
main files MS-DOS uses to configure your system:
AUTOEXEC.BAT and CONFIG.SYS. Your C:\WINDOWS
directory contains the initialization files Windows uses to
configure your system: WIN.INI, SYSTEM.INI, and
PROGMAN.INI.
If you have trouble using any optional equipment or software
you have installed, the problem may be caused by changes
made to these files. You may want to return these files to their
original contents and start over.
If you need to restore these files to their original contents, you
can use the backup versions stored on your computer's hard
disk in the directory C:\BACKUP.
Caution
Before you restore the original files, be sure to save your
current files by renaming them with another file extension.
Select new filenames that are not used by any other backup
files, such as AUTOEXEC.NEW, CONFIG.NEW, and
WININI.NEW.
For instructions on renaming and copying files, and for
more information about the main system files, see your
MS-DOS or Windows manual or the on-line Help utilities.
Copy the files from C:\BACKUP to the following directories
and then reinstall your additional equipment and/or software:
AUTOEXEC.BAT
CONFIG.SYS
WIN.INI
SYSTEM.INI
PROGMAN.INI
22 Read This First
copy to C:\
copy to C:\
copy to C:\WINDOWS
copy to C:\WINDOWS
copy to C:\WINDOWS