netbios

Right click network neighborhood
Select: Properties
Select: Internet Protocol TCP/IP
Click on Properties
Select the NetBIOS tab
Uncheck: Enable NetBIOS over TCP/IP
Click OK
You must also disable the TCP/IP Bindings to Client for Microsoft Networks and File and Printer Sharing:

Right click network neighborhood
Select: Properties
Select: Internet Protocol TCP/IP
Click on Properties
Select the Bindings tab
Uncheck: Client for Microsoft Networks
Uncheck: File and PrinterSharing
Click OK
If you get a message with something like: "You must select a driver.........", ignore the message and click on YES to continue, and click OK to close the other setup windows.

If you still want to share your Files and Printerover the network, you must use the NetBEUI protocol instead of the TCP/IP protocol. Make sure you have enabled it for your local network:

Right click network neighborhood
Select: Properties
Select: NetBEUI
Click on Properties
Select the Bindings tab
Check: Client for Microsoft Networks
Check: File and Printer Sharing
Click OK
Restart your computer after the changes.