Enable/Disable Windows 11 Tamper Protection [Guide]

If you can't change Microsoft Defender Antivirus settings through Group Policy, Command Prompt, or PowerShell, it's because Tamper Protection is enabled. Here's how to fix this problem.

If Windows 11 Tamper Protection is grayed out, this tutorial will be helpful to fix this issue. Some users find that when they go to the Virus & Threat Protection settings, they cannot enable or disable the Tamper Protection option because it is grayed out. Instead, they see a message This setting is managed by your administrator for this option. Although real-time protection, cloud-delivered protection and other options can be easily enabled/disabled in the Windows security application, they cannot use the tamper protection feature. So, for those who are facing this problem, we have included some practical options.

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This tutorial will show you how to enable or disable tamper protection for Microsoft Defender Antivirus settings in Windows 11.

Microsoft Defender Antivirus is antivirus software included in Windows 11 and can help protect your device from viruses, malware, and other threats.

Tamper Protection in Windows Security helps prevent malicious applications from changing important Microsoft Defender Antivirus settings, including real-time protection and cloud-delivered protection. If you have Tamper Protection enabled and you are an administrator on your computer, you can still change these settings in the Windows Security app. However, other apps cannot change these settings.

Tamper Protection essentially locks Microsoft Defender Antivirus to its secure defaults and prevents your security settings from being changed through applications and methods such as:

Configuring settings in Registry Editor on your Windows device
Changing settings via PowerShell commands
Changing or removing security settings through Group Policy

Tamper Protection does not affect how third-party antivirus applications work or how they register with Windows Security.

Tamper protection is enabled by default. If you turn off Tamper Protection, you will see a yellow warning in the Windows Security app under Virus & Threat Protection.

This tutorial will apply to computers, laptops, desktops, and tablets running Windows 10 and Windows 11 (Home, Pro, Enterprise, Education) operating systems from all supported hardware manufacturers, such as Dell, HP, Acer, Asus, Toshiba, Lenovo, Alienware, Razer, MSI, Huawei, Microsoft Surface and Samsung.

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