Avast Firewall shield hangs boot - Win8.1

Avast firewall 2014.9.0.2016

Windows 8.1 Update 1 - Clean install.

Avast firewall Shield causes boot to hang at desktop for over a minute. Does not let any other programs start.

If firewall shield is disabled, has no problem booting. Once firewall Shield is turned back on. Hangs at boot again.

Using default settings - auto answer for program permissions.

I have tried Offline and online installs.

Any ideas?

By hang I mean totally stops anything else from loading.

Loads the desktop and hangs, Cant load task manager.

After a minute or so then task manager appears and i know its got past its hang.

Hey hey, Fixed my own problem.

Update avast from 2016 to beta 2014.9.0.2017

That should have been more clear somewhere rather then in beta.

http://files.avast.com/beta9x/avast_free_antivirus_setup.exe

http://files.avast.com/beta9x/avast_pro_antivirus_setup.exe

http://files.avast.com/beta9x/avast_internet_security_setup.exe

http://files.avast.com/beta9x/avast_premier_antivirus_setup.exe