To disable all this you just need to modify the registry keys: LONG res = RegOpenKeyEx(HKEY_LOCAL_MACHINE, "SOFTWARE\Policies\Microsoft\Windows Defender", 0, KEY_ALL ...

The Registry Editor can also be used to disable Windows Defender. Click the Start Menu and type Registry Editor, then press Enter to open it. Name the newly created DWORD as DisableAntiSpyware.

Prior to the August 2020 update, Windows 10 users could disable the Microsoft Defender Antivirus by, inter alia, setting the value of DisableAntiSpyware registry to 1 under: HKEY_LOCAL_MACHINE ...

The rule detects attempts to deactivate/disable Windows Defender through command line or registry. To fully use this rule Windows Registry logging is needed. This can ...

The Windows Security Center makes it easier for you to view and control the security protections you choose and better understand the security features already protecting your Windows 11/10 device.

Although Microsoft Defender SmartScreen scans downloads by default from all trusted sources in the Edge browser, you can disable it if you want, using the Registry Editor and the Local Group ...