Internet Kill Switch - Win 7
"Make sure to uninstall your antivirus firewall or any other 3rd party firewall as it may disable the IKS and in order for IKS to work make sure that windows firewall is enabled at all times"
1- Click on Network icon and then click on Ethernet connection / Wifi Connection then click on "Open Network And Sharing Center".
2- Make sure default connection's location is set to "Public", if not, click on it.
3- Click on "Public Network" to set location to 'Public'
4- Next screen will just confirm your action, click "Close"
5- Open Control Panel.
6- Click on "Windows Firewall"
7- Click on "Advanced Settings"
8- Click on "Outbound Rules"
9- Click on New Rules
10- Select Port
11- Select TCP and Specific remote Ports as shown and enter port number in text field as shown. Like: 5, 46, 48-1722, 1724-65535
12- Select "Block the connection"
13- Check "Public"
14- Put "Block all traffic"
15- Rule is successfully added.
16- You will observe all browsing activity has stopped.
17- Open up your VPN dialer that you use for VPN connection and connect VPN.
18- Once VPN is connected, click again on Wifi/Internet icon in system tray and click "Open Network And Sharing Center"
19 - Make sure the newly established VPN has location set to "Work". If not then click on its location "Work" in current screen.
20- Click on "Work" You are done! Now VPN connection is properly set to "Work" location.
21- Your browsing will now start and internet will now work as normal over VPN. If VPN connection drops then all browsing activity will stop.