Epson CW3S16 Operation Manual page 119

Insert the MS-DOS install diskette into the A drive.
Close the door, then enter:
C>COPY A:*.* C:
This command will copy the entire contents of the MS-DOS
install diskette into the DOS4 subdirectory on the hard disk.
When the copying process is complete, your computer will
display the following message:
Using the DIR command, run a directory to verify that you
have copied the MS-DOS install diskette.
Remove the MS-DOS install diskette from drive A and replace
it with the MS-DOS select diskette into the DOS4
subdirectory on the hard disk by entering the command.
When the copying process is done, carefully enter the following
series of commands:
C > DEL COMMAND.COM
Using Your Hard Disk
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