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How to perform a virus check?

Elvis Elvis

Now you will learn how to perform a virus check. You have checked and optimized your computer’s RAM, and possibly even upgraded it. The next step in fixing your slow computer is to make sure it is free of computer viruses, and will stay that way.

Here is what we are going to accomplish in this section:

  • Discover what anti-virus software, if any, you have installed on your computer
  • Properly configure your anti-virus software, or install new anti-virus software if you have none
  • Run a full system scan and remove any viruses found
  • Discover what Firewall software you have installed on your computer and properly configure it

Before we get started, let’s learn a bit more about computer viruses, what they are, where they come from, and how they can slow down or even damage your computer and software.

This handsome fellow is a graphic representation of a computer virus. Much like a biological virus, a computer virus is an unwanted invader that sneaks into your system and causes problems. Just like getting a checkup from the doctor when you feel sick, so must you perform a virus check on your computer to make sure it is healthy.

Others have a more malicious goal; they can set up a hidden email server and use your computer to send millions of spam emails or hijack your computer to infect other computers with the same virus. This is why it is important to perform a virus check on a regular basis.

Just as with biological viruses, there are many different types of computer viruses, each one has a different route of infection and different goals once it installs itself on your computer. Some of the different types of viruses include:

  • Boot Viruses
  • Trojan Horse Viruses
  • Macro Viruses
  • Worms

How do viruses infect your computer? Since they are actually computer programs, they have to be downloaded and installed on your computer in order to work. There are dozens of ways viruses can get on your computer:

  • Email Attachments
  • Malicious scripts and codes on websites
  • Operating System security vulnerabilities
  • Hidden code in other software

How to perform a virus check?

How do you know if your computer has a virus? First, you have to perform a virus check on a regular basis. It depends on what the virus is programmed to do. If it is a Trojan virus, it will generally remain fairly inconspicuous and carry out it’s malicious activities unknown to you. If it was written just to cause chaos on your computer, a number of things may happen:

  • Your computer may crash and not re-start
  • Important Operating System files may be deleted
  • Your computer may just start doing weird things; CD tray opening and closing, monitor flashing, etc.

Anytime your computer suddenly has problems or begins to run really slow or act strange, there is a good chance it has picked up a virus.

The only way to know for sure is to use an anti-virus program to perform a virus check and remove any viruses on your system.

There are many Anti-virus Programs available, they range in price from free to $50 a year or more. How do you choose the right one?