The Best Free Antivirus and Spyware Removal Programs!
It is a sobering thought, but despite all the competition among producers of antivirus software to come up with the most sophisticated antivirus systems, you can never be sure that you will be completely safe with only one antivirus program running on your computer.
If you are looking for absolute protection from viruses, spyware and malware, you won't get it. You may use what is touted in the market to be the best one; still, your system will be exposed to virus infection. Like the human body, you will have to strengthen your computer's immune system in the best way possible but there are no guarantees.
The Best Free Antivirus
The AVG Antivirus may be your best option, especially since it is free. The AVG Antivirus free version is intended for home use. The features contained may be limited, but sufficient to meet the security requirements of your home computer. For high-volume commercial and official uses, you will need to purchase the full-feature version. The free version of AVG Antivirus works effectively and gives your PC adequate protection from viruses.
The Best Free Firewall
You are advised to use the Zone Alarm firewall, probably the best one available in the market. This firewall program is available at no cost for the individual user, but it is not free for commercial uses. You can download it easily into your computer. If you are looking for extra protection, you can go for the "pro" offering, which works quite perfectly.

The Best Free Spy Removal Tool
Here you are advised to try several programs. Microsoft has a good system and, no doubt, should be tried first. It is currently available at no cost and may it remain so in future. The beta version of the Microsoft antispyware program works perfectly. Microsoft has put another product on the market which it calls "Windows Defender." This is arguably the best spyware program available for free. There are other dependable products available. You should try Ad-Aware, SpyBot, and ewido anti-malware. These are good systems that can help you combat spyware.
These free tools below are quite effective for the home user. But they need you to do one thing for them: you must update them regularly to make sure they have the latest virus definition files. They cannot fight something that they cannot identify as an enemy of your system.