system
3
This is a known problem with v.2021. Please refer to this thread https://forum.avast.com/index.php?topic=152804.0 - 2nd to the last post.
If the post made by MartinZ does not resolve your issue, then an uninstall of Avast using the Avast Uninstaller tool, and a fresh install will resolve the problem.
As you can see from the thread, I had the same problem. Let us know if you have any additional questions or concerns. Thank you.