# Go to Network Connections folder
(click on Start button, then right click on Network,
select Properties,
then click on “Manager network connections” on Tasks pane).
# You should see various LAN, wireless, Bluetooth, high speed Internet, and other network connections available on the Vista computer with the network adapter description.
Right click on the network connection that you want to disable the IPv6 interface and select “Properties”.
Click “Continue” on User Access Control permission request prompt.
# Clear the check box next to the Internet Protocol version 6 (TCP/IPv6) component in the list under “This connection uses the following items” box.
(* see annexure)
# Click OK when done.
# To re-enable IPv6, tick back the check box.