IPv6 (Internet Protocol version 6) is the "next generation" protocol designed by the IETF to replace the current version IPv4. Most of today's internet uses IPv4, which is now nearly twenty years old and it is beginning to have problems due to shortage of IPv4 addresses which are needed by all new machines added to the Internet. That is why IPv6 been designed.
Only a few ISPs (Internet Service Provider) has implemented this new protocol in their service but not really world wide usage yet.
In Windows Vista and Windows 7, IPv6 was installed by default. If your ISP only using IPv4 for internet protocol, it is safe to disable this IPv6 protocol from your network adapters. By disabling IPv6, you are also reducing the network adapter wasted resource, and after that you'll get a much better network connections responsiveness, not too much but noticeable.
The proper way to disable IPv6 is to disable via the registry and it will applies to all of network adapters in your computer:
1. Click on the Start button, type in regedit and hit Enter. Then, navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\TCPIP6\Parameters
2. At the right pane, right click on the empty space and choose:
New > Dword (32-bit)
3. Name the new value:
DisabledComponents
And hit Enter.
4. Double click on the new DisabledComponents value you just created and give it 255 in Decimal. Click OK after that.
Restart the computer for changes to take effect, IPv6 will be disabled on all network adapters.
January
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