Solution found for Metro Apps:
Solution for firewall:
sfrausto
Newbie
Posts: 1
Re: Problem with Avast Internet Security and Windows 8
« Reply #3 on: June 28, 2012, 01:52:46 AM »
Okay, after playing around with my AVAST Firewall settings, I finally got it to work with the apps. Go to your Firewall tab and click Firewall settings. Then click Expert setting in the top right area. Under the Policies tab (first screen) enable Internet Connection Sharing Mode. THAT'S IT!!! it will let you access the network for your apps, without having to disable your firewall for xx amount of minutes. The cool thing, if you're like me and don't want other users to access your skydrive or other apps, just simply uncheck the Internet Connection Sharing and it will block the apps again. =)
Solution for Behavior Sheild:
1. clcik on real time shields
2. click on behavior shield
3. expert settings
4. uncheck "Monitor The System for unauthorized modifications
5. them click on OK
now your Metro Apps will work.