When avast free expire disables the windows firewall and it is impossible to restart again.
I’m a technician and this already happened to me 3 times with different clients and AVAS provocate this.
I Uninstalled Avast, and no way to restart firewall service again.
I have applied Microsoft solutions and nothing seems to work (http://support.microsoft.com/kb/920074/es).
Thank in advance.
Roverto