In elevated Command Prompt run 2 commands:
netsh interface ipv6 set prefix ::/96 60 3
netsh interface ipv6 set prefix ::ffff:0:0/96 55 4
In elevated Command Prompt run 2 commands:
netsh interface ipv6 set prefix ::/96 60 3
netsh interface ipv6 set prefix ::ffff:0:0/96 55 4