# DNS over HTTPS in Windows 11 Requires Windows 11. * `GPO-EnforceDoH.reg` enables the group policy to require DoH. However it didn't seem to work for me or it allowed me to set the DNS server to not use DoH. * `DohWellKnownServers` adds DoH support for multiple IPv4 & IPv6 addresses that Windows 11 isn't shipping by default, currently: * Mullvad * Mullvad Adblock * Adguard * Quad9 ECS (Windows 11 defaults include Quad9 default) * Cloudflare antimalware