There are plenty of perfectly free Antiviruses. Assuming you have a legal copy of Windows, you can download Microsoft Security Essentials which is excellent. There is also Avast and AVG.
Spyware Anti-Virus
There is normally a free version of the software,or at least a free trial period. For free antivirus software you should try AVG vireus protection.
MBAM and try comodo antivirus
There are many websites that provide a free antivirus protection software. Some companies, such as AVG, allow users to download this protection plan for free from their website.
Some free antivirus programs include: NOD32 and Kaspersky. The cheapest antivirus programs are the free ones but the protection may not be as great as the paid versions. Some free antivirus programs include: Avast Free, AVG Free, Avira, Bitdefender, Comodo, Immunet, Kingsoft, Microsoft Security Essentials and Panda Cloud Antivirus.
Most antivirus producers will offer a free trial of their software. AVG is a popular free antivirus software that can protect against most common computer problems. You can then upgrade their service for better protection and additional features by purchasing a premium edition.
In my opinion AVG Antivirus, i am not sure if they free version comes with the firewall or not, but either way its is a great antivirus and firewall combination.
Some of the best free computer security options available are AVG Antivirus Free and Avast Free Antivirus. However, if you want complete protection with firewall and spyware protection included, you will most likely have to choose for the paid internet security suits.
There are many companies that offer anti virus protection. Some even offer free scans of your computer or free antivirus protection. Some of the more reputable companies include Microsoft, Kaspersky, Norton and Eset.
AVG is a reputable free anti-virus program. It has paid options, but basic protection is no cost.
kingsoft free antivirus. its new updated,you can try it. Nice interface and with easy commands. Provides a very good protection and scanning is fast.
Comodo Antivirus is a free antivirus software that allows users some level of customizability. In terms of price it cannot be beat and it also provides a decent level of protection for computers.