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

In this guide, we'll show you the steps to update an image of Windows 10 with the latest version of Microsoft Defender Antivirus.

So far, it's looking like the useful phishing protections enabled by a Microsoft Defender SmartScreen capability are just for Windows 11 users, starting with version 22H2.