Epson 10020 User Manual

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Some program diskettes, such as your 

diskettes,

have no notch so they are permanently write-protected. This

protects them from being accidentally erased or altered.

On a 3 1/2-inch diskette, the write-protect device is a small
switch on the lower right comer on the back, shown below. To
write-protect a 3 1/2-inch diskette, slide the switch toward the
edge of the diskette 

clicks into position, exposing a hole

in the comer.

To remove the write protection, slide the switch toward the

To remove the write protection, slide the switch toward the

center of the diskette so the hole is covered.

center of the diskette so the hole is covered.

It is important to make copies of all your data and system

diskettes. Copy all diskettes that contain programs, such as the

original MS-DOS diskettes that come with your computer, and

use only the copies. Store your original MS-DOS diskettes in a

safe place away from your working copies. Back up your data

diskettes regularly, whenever you revise them, to keep them

up-to-date, and store them away from your originals.