Windows 11 policy lets admins block Chrome and Edge from auto-downloading a 4GB AI model
Summary
Microsoft added a Windows 11 registry policy, GenAILocalFoundationalModelSettings, that lets admins block browsers from automatically downloading or reinstalling local foundational models (e.g., the ~4GB Gemini Nano weights.bin). Setting Disallowed (1) removes existing models and prevents future downloads; Allowed (0) permits them. The policy supports dynamic refresh and deploys via Group Policy, Registry, or enterprise tools on Windows 11 Pro, and applies to Edge (v132+) and Chrome (v147+).
Why it matters
This gives IT and compliance teams an explicit OS-level control to prevent browsers from silently installing on-device AI models, aiding enforcement of storage, bandwidth, and consent policies.