Disable the ?Set Network Location? dialog in Windows Vista Whenever Microsoft Windows Vista is connected to a new network, the system presents the "Set Network Location" dialog requesting to categorize the newly connected network as one of the following:
Private
Work
Public
Public is the only option that can be chosen without using administrative rights on the system.
When an admin does not want this dialog to pop when one of his mobile computers is connected to non-trusted network, there is no option in Group Policy to stop the dialog from occurring.
The user has the option to disable the dialog from the UI:
Right Click the network icon in the system tray
Click Turn off/on notification of new networks
 This is not the ideal option for the average admin. So this can be arranged from the registry:
On a per user basis
Set the value "Show" (REG_DWORD) to 0 in HKCUSoftwareMicrosoftWindows NTCurrentVersionNetworkNwCategoryWizard
At the system level
Create a new Registry key (without any value) NewNetworkWindowOff in HKLMSYSTEMCurrentControlSetControlNetworkNewNetworkWindowOff
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