Force network location to "Work network" in Windows 7 Home edition
I believe that you can only set network policies to Private or Public, but there isn't much difference between Private and Work. A Private network is trusted.
Open the Local Security Policy Editor (Start->Run "secpol.msc" ).
Under Security Settings, select "Network List Manager Policies" and then select
a network name from the displayed names (I don't know exactly which name will apply in your case).
Right-click and select Properties and set the "Location type" to Private.
Reboot.