Not sure if this is related, but it seems to have started after I let my copy of Avast Internet Security upgrade to Avast Premium Security a couple of days ago.
Every now and then, despite not being set as the "default" browser, the Avast Security Browser just randomly opens up.
It doesn't open up on any specific page or anything, just opens up with a blank page as shown in the attachment.
Nothing related in my Startup Tab for Avast Browser, but in Processes, I see two entries - Avast Browser and Avast Browser (32 bit)
Obviously I can kill those two processes but they reappear after a system restart and to my way of thinking, just the processes being there shouldn't cause the browser to open?
Full scans with Avast, Malwarebytes, and SuperAntiSpyware show no infections of any type.
Any ideas how I can cure this behaviour?
System Specs:
Windows 10 Pro Version 1809 (Build 17763.737)
Avast Premium Security 19.8.2393 (Build 19.8.4793.535)
Virus Definitions Version: 190927-2
UI Version: 1.0.409