When switching from one interface to another in the pro version (i.e. enhanced user interface to the Simple User interface) Windows begins to continue booting.
It's not a bug. It's a limitation of the logon time. I can't do anything about this.
The same reason to 'halt' the logon is the fact that logon continues in the case you've mentioned.
I'm surprised, though, that a standard scan (no archives) takes about the same or even a little longer for me doing it this way than a "standard" standard scan
If you're used to have little programs opened, ok, it could be the same.
Like me, with a lot of concurrent programs working... well, it helps.
and there's still a humongous list of files not accessed because in use.
It's not boot time scanning. If the problem is access rights, run avast boot time scanning.
What, really, are we gaining with this tool?
avast functionality without programs running in background. Nothing more but nothing less.