This is a list of all the free software I use and install on computers to protect them from viruses, spyware/malware etc.

1. Antivirus: Microsoft Security Esentials

A good free antivirus Microsoft is giving out. Its simple, doesn't bother you unless it finds a problem and works well. How to install Microsoft Security Esentials

2. Antispyware: Spybot Search & Destroy

Spybot S&D is a great program that has been around for a long time. It is a good Idea to run the scan about once a month but it also has some preemptive protection. How to install and run spybot

3. Antimalware: Malwarebytes

The free version will only scan but it is a great program for cleaning a computer. I have used it to remove some more stubborn malware programs. How to install and run Malwarebytes