Even for an expert, removing a virus properly from a system is
often a daunting task without the help of specific tools
designed for the job. Some viruses and other unwanted software (including
spyware) are even designed to reinstall themselves after
they have been detected and removed! Fortunately, through
updating your computer and using free, trial-period, or
low-cost antivirus tools offered by many companies, you can
help permanently remove (and
prevent) unwanted software.
If you already have antivirus
software installed on your system, it's very important to keep
it current on a regular basis with the latest updates (usually
called definition files) that help the tool identify and remove
the latest threats. In addition, not all antivirus tools are
created equal; if you find that the one you use isn't working to
your satisfaction, you should do some research and try an
alternative.
Basic viruses typically require unwary computer users to
inadvertently share or send them. Some viruses that are more
sophisticated, such as worms, can replicate and send themselves
automatically to other computers by controlling other software
programs, such as an e-mail sharing application. Certain viruses,
called Trojans (named after the fabled Trojan horse), can
falsely appear as a beneficial program to coax users into
downloading them. Some Trojans can even provide expected results
while quietly damaging your system or other networked computers
at the same time.
(above wrıtıng www.microsoft.com from receipt) |