Frequently Asked Questions

Windows Defender Antivirus is an anti-malware engine that comes included on Windows 10 to protect your device and data against viruses, ransomware, spyware, and many other security threats.
Although it's an antivirus that provides robust real-time protection, and even disables itself automatically when a third-party solution is detected, it's not possible to permanently disable or uninstall the engine entirely like in previous versions.
However, there are still a number of scenarios when you may not want to use the default antivirus. For example, when setting up a kiosk computer that won't connect to the internet and no one will be allowed to connect peripherals. Or when performing specific tasks that otherwise will be blocked by the security feature. If you must disable Windows Defender Antivirus, despite the risks of leaving your device vulnerable to threats, there are a few ways to turn off the antivirus permanently using the Group Policy Editor and Registry.

https://www.windowscentral.com/how-permanently-disable-windows-defender-windows-10