
If you restart your computer and Avira is gone, congratulations! You are now free to run whatever other antivirus program you like. I've had it work and malfunction both ways. I don't have a solid opinion on whether you should.

Use the "Add or remove programs" feature in Windows to uninstall Antivirus first, then the Launcher, which is just called "Avira." (This is in Control Panel, or just search for it in the Windows toolbar.) Avira may recommend that you restart your computer between each uninstallation. But you should at least give it the old college try before you make your life more difficult than it has to be. In theory, uninstalling the Launcher program will solve this issue. As such, if you uninstall Antivirus but not the Launcher, the latter will reinstall the former the next time you update your machine.

To simplify a complicated problem, the Avira Launcher (which installs and manages other Avira programs, such as Phantom VPN and System Speedup) requires Avira Antivirus to run. Instead, a program called Avira Launcher is reinstalling it. To make a long story short, the Avira Antivirus software is not reinstalling itself.

Ensure that Avira Antivirus is uninstalled.
