Avira Antivir does not require any introduction. It is one of the best and most widely using antivirus solutions (an excellent free version also available) in the world. With first-rate protection, it requires not as much of system memory and disk space. However, for your own reasons, you may want to uninstall Avira Antivir from your machine. Unfortunately, sometimes, like all other antivirus programs, you can’t uninstall Avira properly from your machine. It left scraps on the registry and causes for several issues like unable to reinstall it or install new security software, etc.
But don’t worry; you can simply remove all leftovers from your computer with the official utility called Avira registry cleaner developed by Avira. Avira registry cleaner is a portable tool.
Just download and run the tool. Click ‘Configuration’ option and select all entries. Save the settings and click on the ‘Scan for keys’ button to clean the Avira Antivir registry leftovers.