How to Turn On or Off Tamper Protection for Windows Defender Antivirus in Windows 10

Starting with Windows 10 build 18305, Microsoft introduced Tamper Protection.

Tamper Protection is a new setting from Windows Defender Antivirus, available in the Windows Security app, which when on, provides additional protections against changes to key security features, including limiting changes which are not made directly through the Windows Security app.

Starting with Windows 10 build 18323, you may see a new recommendation in the Windows Security app suggesting you turn this setting on if currently turned off.

This tutorial will show you how to turn on or off Tamper Protection for key Windows Defender Antivirus security features in Windows 10.

You must be signed in as an administrator to turn on or off Tamper Protection.

Here's How:

1. Open Windows Security, and click/tap on the Virus & threat protection icon. (see screenshot below)

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2. Click/tap on the Manage settings link under Virus & threat protection settings. (see screenshot below)

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3. Turn on (default) or off Tamper Protection for what you want. (see screenshot below)

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4. When prompted by UAC, click/tap on Yes to approve.

5. You can now close Windows Security if you like.

That's it,