A. To stop users from listing machines in their local workgroups or domains via Windows Explorer or My Network Places (Network Neighborhood), perform the following steps:

  1. Start the registry editor (regedit.exe).
  2. Move to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Network (create the key if it doesn’t exist).
  3. From the Edit menu, select New, then DWORD value.
  4. Enter the name NoComputersNearMe, and press Enter.
  5. Double-click New Value, and set the value to 1. Click OK.
  6. Close the registry editor.
  7. Log off and log on for the change to take effect.

You can also perform this procedure with a Group Policy Object (GPO) by selecting User Configuration, Administrative Templates, Windows Components, Windows Explorer, then No Computers Near Me in My Network Places.