How to Disable IPv6 in Windows 10 Disabling IPv6 in Windows has solved many issues for users, but, in all fairness, it's also caused a few. If you're sure you need to disable IPv6 in Windows 10, here's how. Editing the properties of a network adapter and unchecking the IPv6 checkbox only unbinds IPv6 from that particular network adapter. It doesn't disable IPv6 in Windows and it doesn't solve the common problems with IPv6 in Windows. To cleanly disable IPv6 a registry key must be added. Beware, messing up the Windows registry can ruin your Windows install. Tread lightly and be careful. Like just about everything else in Windows, there's at least two ways to add this registry key. If your comfortable using the command prompt, you can use the Command Prompt Method near the bottom of this post. Regedit Method Sign into Windows 10 with an account that has local admin privileges. Click on the Start button, type regedit , and press the enter key. Click the Yes but...