Sets DiagTrack (display name 'Connected User Experiences and Telemetry') to Disabled and stops it now. DiagTrack is the primary Windows telemetry service — it batches diagnostic/usage data and uploads it to Microsoft. Disabling it is the single most effective telemetry cut and pairs with the scheduled-task and hosts-file telemetry tweaks already in this app. Trade-off: 'Feedback Hub' and some diagnostic/Insider tooling stop reporting; enterprise-managed devices may re-enable it by policy. Fully reversible (revert restores the original start type).
MaxTweaks applies this tweak with one click and snapshots your original setting first, so you can revert it cleanly at any time. A System Restore point is offered before batch changes, and every tweak links to its official source.
Get MaxTweaksOfficial documentation: https://learn.microsoft.com/en-us/windows/privacy/configure-windows-diagnostic-data-in-your-organization