To install IPv6:-
Start, point to All Programs, point to Accessories, and then click
Command Prompt.
At the command prompt, type: ipv6 install and press the Enter Key.
To uninstall IPv6:-
Start, point to All Programs, point to Accessories, and then click
Command Prompt.
At the command prompt, type:netsh int ipv6 uninstall and press the
Enter Key.