A computer virus is a computer program that can copy itself and infect a computer. The term “virus” is also used to refer to other types of malware, adware and spyware programs that do not have the reproductive ability. A virus can spread from one computer to another and can increase their chances of spreading to other computers by infecting files on a network. 

Spyware is a type of malware. Spyware programs can collect various types of personal information, such as Internet surfing habits and sites that have been visited, but can also interfere with user control of the computer in other ways, such as installing additional software and redirecting Web browser activity. Spyware is known to change computer settings, resulting in slow connection speeds, different home pages, and/or loss of Internet or functionality of other programs. Malware is software designed to access your computer without your consent. The term Malware refers to malicious software and is intent on causing harm. Malware includes computer viruses, worms, trojan horses, spyware, dishonest adware, scareware, crimeware, most rootkits, and other malicious and unwanted software or program.

There are a lot of commercial antivirus software products on the market which you can purchase to protect your computer. Some even offer a trial period before you purchase it. There has been a rise in the spread of viruses recently and more and more we are being called upon by customers to get rid of them. We have noticed that some of the commercial antivirus software is not always fully preventing our customers pc’s from being infected.

So what can you do?  Well, there is a lot of free antivirus software available on the internet which you can download and install on your pc. We have found that the free versions are a lot less invasive on your pc and have picked up on unwanted viruses that the commercial versions have let through. To ensure that your computer is safe always update your antivirus software so that you have the latest virus definitions. We recommend that you do a full scan once a week and if you feel you need to do more you can run a quick scan every other day.  As always use your common sense. If you have a suspicious email don’t open it or if you get a message flashing on your screen saying that your computer is infected ‘click here’ for a free scan, do not click the button. Here is some of the free antivirus software that we would recommend: Avira, Microsoft Security Essentials and Superantispyware.


Crest IT Services is a growing family run company helping individuals as well as small and start up businesses. We offer affordible IT services and understand that building a relationship with our customer is important.

Leave a Reply