Start by thinking about Security software

When building computers for those in need the first thing to consider once you have a working system is security software to put on the system.

You are going to want to use freeware.  Security related programs that fight infections of Malware (malicious software) and computer viruses are freely available on the internet. I will point you to such programs and give a brief review of each.  I will only cover programs and resources that I have first hand experience with.

There are many different types of infections that can attack a desktop PC.  Most infections of Malware are routinely misclassified as viruses.  My purpose will be not to define the differences between the many different types of Malware and Viruses but to recommend some tools that you can install to defend against the majority of these threats.

There are hosts of reliable programs that help provide security for your desktop PC.  Controlling and eliminating the dangerous threats that seek to infest desktop systems from the internet and other sources.

Its become clear to me that there is no one solution to effectively protect yourself  from the vast amounts of constantly emerging, continually evolving and usually dangerous computer Viruses, Malware -  Adware, Spyware, BHO's, Trojan's, RootKits, Scumware, Crapware, Dialers etc. All of these infections, some more dangerous than others, have many different ways of invading your system. These threats make the internet specifically, and the general use of desktop PC’s much less friendly and they all are just waiting for an opportunity to defile an unprotected system. So installing some protection is necessary before you give the system away.