Disable NetBIOS port 137 138 139

To disable NetBIOS over TCP/IP support

1. From the Network and Dial-up Connections icon in Control Panel , select Local Area Connection and right-click Properties .
   
2. On the General tab, click Internet Protocol (TCP/IP) in the list of components, and click the Properties button.
   
3. Click the Advanced button.
   
4. Click the WINS tab. Click Disable NetBIOS over TCP/IP .
   
   
   
   source : https://technet.microsoft.com/en-us/library/cc940063.aspx