Avast Firewall won't work

[sigIII]

I have installed the Avast Internet 5.0 & the Firewall will not turn on.I have tried uninstalling & reinstalling,but Firewall will still not turn on.
a little help please!
Thanks

[Lisandro]

I suggest an installation from the scratch:

1. Download the latest version of avast! Uninstall Utility and save it.
2. Download the latest avast! version and save it.
3. Uninstall avast from Control Panel (if possible). If, for any reason, you can't run it, try booting in Safe Mode and doing it from there. Anyway, boot after that.
4. Run the avast! Uninstall Utility saved on 1. If, for any reason, you can't run it, try booting in Safe Mode and doing it from there. Anyway, boot after you've run it.
5. Install avast! using the setup saved on 2. Boot.
6. Register your free copy or add the license key for Pro.
7. Check and post the results.

Also, which was your previous antivirus and firewall before AIS?

[sigIII]

I had been using Norton & Mcafee,but I uninstalled them before installing Avast & of course I rebooted between the uninstall/installs.
   Man that may be too advanced for me to do.would you be able to call me & walk me thru it over the phone?

[Lisandro]

http://www.avast.com:80/contacts