By default, when you go to Network Places, it will scan and show shortcuts to previous network shares.

To turn this off and remove any current shortcuts, follow the next steps:

1. Open up the Windows Explorer.
    
2. Go to Tools -> Folder Options -> View.
    
3. The top section should be Files and Folders.
    
4. Uncheck Automatically search for network folders and printers.
    
5. Then go into Network Neighborhood Select all the previous network connections Delete them.
    
6. Next time you look at the Network Neighborhood, they should not repopulate.