User`s guide

If these methods do not work, you may need to reset the
computer as described below. Do not turn off the computer to
exit a program or stop a command unless you have to, because
the computer erases any data you did not save.
Resetting the Computer
Occasionally, you may want to clear the computer’s memory
without turning it off. You can do this by resetting the
computer.
For example, if an error occurs and the computer does not
respond to your keyboard entries, you can reset it to reload
your operating system and try again. However, resetting erases
any data in memory that you have not saved, so reset only if
necessary.
Caution
Do not reset the computer to exit a program. Some programs
classify and store new data when you exit them normally. If
you reset the computer without properly exiting a program,
you may lose data.
To reset the computer, the operating system must be either on
the hard disk or on a diskette in drive A, so if you do not have a
hard disk, insert the system diskette in drive A. If you are using
MS-DOS, you can hold down Ctrl and Alt and press Del. The
screen displays nothing for a moment and then the computer
reloads your operating system.
You can also press the RESET button located on the front right
side of your computer.
2-4 Using Your Computer