How to disable IPv6 on Windows 10

Step 1: Right-click the network icon in the notification tray and select Open Network & Internet settings.

Step 2: Open Network and Sharing Center.

Step 3: Click on your network adapter.

Step 4: Click on Properties.

Step 5: Uncheck Internet Protocol Version 6 (TCP/IPv6) on the list. After that, click OK and Close.

Credit : https://support.nordvpn.com/hc/en-us/articles/19919186892305-How-to-disable-IPv6-on-Windows#Windows%2011