AntiVir is the anti-virus software launched by Avira Company. It has comprehensive functions, and can quickly and accurately eliminate viruses. It has won many awards. Avira AntiVir Personal Edition Classic is a truly free personal version of it. It has a concise interface and launches quickly. Especially for old computers, it is the most suitable choice. Moreover, the software has a small size, can quickly and accurately eliminate viruses, and is powerful enough to defeat its competitors.