I first noticed yesterday that I cannot open Avast (via the system tray menu or the start menu). The hourglass on the mouse cursor flickers for split second when invoked, but nothing happens. Trying to open "About Avast" brings up a blank white box.
After running "repair" from uninstall, Avast seems to function normally after a single reboot, but reverts to not opening after a second reboot or shutdown and remains inoperable until running repair and rebooting again.
I have uninstalled Avast and reinstalled it and the problem persists.
I have two identically configured machines, with the same GPOs, both running Windows 10 20H2 and Malwarebytes as well. Both have the same Avast and MBAM configurations. This is only happening on one machine.
What do I do? It's making me crazy.