If Windows Defender is missing and is gone or has disappeared in Windows 11/10, here are some suggestions that are sure to help you resolve the issue.

How to open Windows Firewall in Windows 11/10 The Windows Defender Firewall can be configured to allow or block programs on a computer from accessing network or Internet resources.

Formerly known as Windows Defender, Microsoft Defender is an antivirus protection program that's included with Windows 10.

You can use a stronger protection level with Windows Defender Antivirus, and in this guide, we'll tell you how to do it on the Windows 10 Creators Update.