How to Enable Windows Defender in Windows 10 and 11
Save as "Enable Windows Defender.bat"
Right Click on the bat file and Select "Run as administrator"
REM FixMyComputerMark.com
REM How to Disable Windows Defender in Windows 10 & 11
REM https://www.fixmycomputermark.com/free-downloads/file/135-how-to-disable-and-enable-windows-defender-in-windows-10-and-windows-11.html
REM
REM Right Click on the bat file and Select "Run as administrator"
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableBehaviorMonitoring /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableOnAccessProtection /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableScanOnRealtimeEnable /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection" /v DisableRealtimeMonitoring /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Signature Updates" /v ForceUpdateFromMU /t REG_DWORD /d 1 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /v DisableBlockAtFirstSeen /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Policy Manager" /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Policy Manager" /v DefaultAntivirusScan_ScheduleDay /t REG_DWORD /d 2 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Policy Manager" /v DisableScanOnRealtimeEnable /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiSpyware /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableRealtimeMonitoring /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableAntiVirus /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableSpecialRunningModes /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v DisableRoutinelyTakingAction /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender" /v ServiceKeepAlive /t REG_DWORD /d 1 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center" /v ServiceKeepAlive /t REG_DWORD /d 1 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Security Center" /v DisableWindowsDefender /t REG_DWORD /d 0 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection" /v EnableAdvancedThreatProtection /t REG_DWORD /d 1 /f
REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection" /v ScanSchedule /t REG_SZ /d "Daily" /f
EXIT
OR download this file here: