Anti-Spyware - Spybot Search and Destroy - Free for Personal Use (I recommend paying some amount if you use it alot)

 http://www.spybot.info/en/mirrors/index.html

...just click on a mirror site like “safer-networking” and the download will start.

 Anti-Virus - "ANTI-VIR" - Free for Personal Use (I recommend paying some amount if you use it alot)

 Here is the link to download, but visit the actual website for more info -

http://www.download.com/Avira-AntiVir-PersonalEdition-Classic/3000-2239_4-10322935.html?part=dl-10322935&subj=dl&tag=button\

 The antivir site is at - http://www.free-av.com – if you have trouble downloading from the above “link”, go to this main site and click on the “Free” version

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Firewall - Use Windows Firewall - free with operating system OR, if you have a router with a built in firewall, activate it, and deactivate Windows Firewall on all machines using the router.

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Remember - DO NOT RUN MORE THAN ONE FIREWALL OR ANTIVIRUS PROGRAM - THIS IS ASKING FOR TROUBLE.

Note:   Also ensure that programs are kept up-to-date (including Legitimate Windows Installations).