New Post: [Solved] Show Pending Updates Firewall problem

After testing we found this:

We used the GPO of 2008 R2 with the entry

Windows Firewall with Advanced Security 

which Windows XP does not accept.

We replaced that 2008 R2 GPO and added this GPO:

Computer - Admin. Templates - Network Connections - Windows Firewall: Define inbound program exceptions
%WinDir%\System32\dllhost.exe:NNN.NN.NNN.NNN:enabled:DLLHost

Thanks to all supporter!

Best regards
Petapico.