Home > Think Tank > How to enable/disable Windows Defender PUA/PUP protection in Windows 10 Home/Pro
February 1, 2018

How to enable/disable Windows Defender PUA/PUP protection in Windows 10 Home/Pro

For improving Windows 10 enterprise security, Microsoft turned on PUA/PUP protection of Windows Defender by default. But, it has been turned off by default in Windows 10 Home and Windows 10 Pro. How to turn on Windows Defender PUA/PUP protection in Windows 10 Home and Windows 10 Pro?

Method 1: Use PowerShell cmdlets to configure the PUA protection feature
1, Press Win + S
2, Type powershell
3, Right click on Windows PowerShell, click Run as administrator
4, Enter the command:
Set-MpPreference -PUAProtection enable
5, Restart system, the PUA detection has been enabled.
Setting the value for this cmdlet to Enabled will turn the feature on if it has been disabled.
Setting AuditMode will detect PUAs but will not block them.

Method 2: Edit Windows registry
Before start to edit Windows registry, please make a full registry backup. You can refer this page to learn How to back up full Windows registry.
1, Press Win + R
2, Type regedit, and press Enter
3, Expand and find:
HKEY_LOCAL_MACHINE/Software/Policies/Microsoft/Windows Defender
4, Right click on Windows Defender, select New – Key, and named MpEngine
5, Click on MpEngine, then right click on right area, select New – DWORD (32-bit) Value, named MpEnablePus
6, Double click MpEnablePus, set its Value data = 1
7, Restart system, then the PUA protection has been enabled.
If you want to disable PUA detection, just change MpEnablePus value to 0, or delete registry entry MpEngine
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