Did you even wonder about those tunnel adapters appearing in ipconfig? You need them as soon as you’re working in a dual ip stack like using IPv4 and IPv6 addresses the same time. Ok, thats a very basic version of what it does, but if you consider details just read the following articles:
If you don’t need them, use the following commands to disable those adapters and remove’m from ipconfig.
netsh int isa set state disabled
netsh in 6to4 set state disable
netsh in teredo set state disable