2. A computer virus is a computer program that has the
potential to distort the original functions of a computer.
Viruses are one of the worst computer problems and they can
affect a PC in many ways. For example, a person from
overseas can control the functions of another computer
without any problems for as long as the viruses are being
used properly. On the other hand, it is possible to distort the
memory of a computer using a virus.
For this reason, ensuring that you have put in place measures
for computer virus protection cannot be overemphasized at
all. Since a PC is a very complex machine, you must fully
understand what you are doing before you can open it or
temper with one of its components.

3. If your computer is showing virus symptoms, it might be
because your anti virus software is out of date. It is common
for most people to operate their computers with antivirus
program that has gone past its date of updating its tools and
components. If this is the case, you may have to initiate an
update process.
Most antivirus programs usually have auto update settings,
which enable them to automatically update their systems on a
timely basis. For files of the antivirus program to be updated
automatically, you must have a reliable internet connection.
The computer will have to be connected to an internet
connection for auto updates to be downloaded.