Technical Support; Boot Problems; Computer Viruses - NEC VERSA E6500 Series User Manual

Technical Support

If you are not able to resolve your problem you can contact NEC Customer Support. Please
check the terms of your warranty, and have your notebook's serial number on hand before you
call us. Please write down any error message causing the problem, and have the notebook in
front of you, switched on if possible.

Boot Problems

The message "Operating System Not Found", or "Non-System disk or disk error"
appears during boot-up.
This message implies that your notebook cannot find any operating system on the first boot
media. (You may refer to the BIOS Setup chapter for more information on the boot
sequence).
Most of the time, this happens because a non-bootable diskette is inserted in the floppy disk
drive, and the notebook unsuccessfully tries to boot on this diskette. Remove the floppy disk
(you do NOT need to insert a bootable floppy disk instead) and follow the on-screen
instructions.
Why can't I boot from the floppy disk drive?
To boot from the floppy disk drive, be sure that you have a floppy disk in the drive containing
operating system files (also known as bootable floppy or system floppy). Be sure to check the
boot sequence in the BIOS Setup chapter.
See your operating system documentation for information on how to create a system floppy.
What is the difference between a warm boot and a cold boot?
A warm boot restarts the notebook while system power is on. This process resets the software
by clearing the volatile system memory and reloading the operating system.
A cold boot is a notebook start with power off. This process resets and checks the hardware,
and reloads the operating system.
Why does my notebook automatically boot up when I receive a phone call?
Make sure your BIOS parameters are correctly set up. (You may refer to the BIOS Setup
chapter for more information on the wake up events).

Computer Viruses

When did a virus appear for the first time?
There are theories that experiments with virus-like self-replicating programs already took place
in 1949. Experimental viruses were first programmed and tested in the 1960s. The name
"virus" first popped up in 1984 when a university professor used this term to describe the
destructive computer programs. When personal computers became popular in the 1980s,
computer viruses also started appearing. The use of floppy disks and bulletin boards in the late
eighties and the excessive growth of the Internet and computer usage at home and in
businesses in the late nineties increased the number of viruses and infected computers.
Today's viruses may also take advantage of network services such as the World Wide Web, e-
mail, instant messaging and file sharing systems to spread. Widely used new storage media
such as USB thumbdrives also put users at risk.
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