a-squared Anti-Malware is a popular anti-malware product not only because it offers a free version in addition to its pro version, but also, generally speaking, it works fairly well. Emisoft, the developer of a-squared, runs many promotions of their software and this is another one. For a limited time span of 24-hours users can get a 1 year license of a-squared Anti-Malware 4.5 Pro for free:
[Link to get 1 year free ]
If you are not sure how to get the license for free, please read my post on how to get the 1 year free license for a-squared Anti-Malware Pro.  The directions mentioned in the post are in English, while today’s promotion is conducted in German, but the methods are the exact same.