Manage tamper protection on an individual device

Applies to:


  • Windows


Tamper protection blocks attempts to modify Microsoft Defender Antivirus settings through the registry. To help ensure that tamper protection doesn't interfere with non-Microsoft security products or enterprise installation scripts that modify these settings, go to Windows Security and update Security intelligence to version or later. (See Security intelligence updates.) After you've made this update, tamper protection continues to protect your registry settings, and logs attempts to modify them without returning errors.

If you're a home user, or you aren't subject to settings managed by a security team, you can use the Windows Security app to manage tamper protection. You must have appropriate admin permissions on your device to do change security settings, such as tamper protection.

Here's what you see in the Windows Security app:

Turn tamper protection turned on in Windows 10 Home

  1. Select Start, and start typing Security. In the search results, select Windows Security.

  2. Select Virus & threat protection > Virus & threat protection settings.

  3. Set Tamper Protection to On or Off.