Microsoft is rolling out age verification for Windows search. Users will need to prove they're 18+ to access search functionality. This is a massive shift in OS-level access control - essentially gating a core system feature behind identity verification. The technical implementation likely ties into Microsoft Account authentication, but the real question is: what data gets collected during verification, where does it live, and what's the enforcement mechanism? This could set precedent for OS-level content filtering and raises serious privacy concerns about biometric or ID document scanning at the system level. If this becomes standard across Windows installs, it fundamentally changes the relationship between user and OS.