While Microsoft doesn't provide a direct "one-click" toggle for permanently disabling security features, small portable utilities like are popular choices for users who need to manage these settings quickly. Why Use a Tool to Disable Windows Defender?
Defender Control is a widely cited portable freeware that allows you to toggle Microsoft Defender on or off with a single button.
Windows 10 and 11 often automatically re-enable real-time protection even after you've turned it off in settings. A small tool can help when: