Avira Free Antivirus is a software that provides protection from viruses, Trojans, worms, rootkits, adware and spyware. It does not only protect the computer, it has the ability to remove viruses immediately and repair the system incase that computer is infected. It has AntiRootKit that can detect even the hidden rootkits. It has NetbookSupport that can assist computers with low resolution. It has AHeaDTechnology that can identify viruses even the unknown one. In case of scan progress, the system shows a window that provides realtime scan performance, configuration on how to scan archive and restart reminder to complete the process.