Start here:
https://www.solveyourtech.com/how-to-disable-ipv6-windows-11-a-step-by-step-guide-for-users/
https://www.windowscentral.com/software-apps/windows-11/how-to-disable-tcpipv6-ipv6-on-windows-11
Just use the presented windows.
No need for Command Prompts or Powershell.
Stay out of the registry.
If unsure, then look for other similar links and tutorials.
You should be able to work through the various windows, tabs, etc. beforehand to get a sense of it all.
"Cancel" is your friend.
https://www.solveyourtech.com/how-to-disable-ipv6-windows-11-a-step-by-step-guide-for-users/
https://www.windowscentral.com/software-apps/windows-11/how-to-disable-tcpipv6-ipv6-on-windows-11
Just use the presented windows.
No need for Command Prompts or Powershell.
Stay out of the registry.
If unsure, then look for other similar links and tutorials.
You should be able to work through the various windows, tabs, etc. beforehand to get a sense of it all.
"Cancel" is your friend.