Microsoft is working on adding support for the privacy-focused DNS over HTTPS (DoH) protocol in a future Windows 10 release. DoH is designed to allow DNS resolution over encrypted HTTPS connections, while DoT encrypts and wraps DNS queries via the Transport Layer Security (TLS) protocol instead of using plain text DNS lookups. Redmond is currently prioritizing the adoption of DoH in Windows 10 since it considers it the choice that will “provide immediate value to everyone
Source: security