
For Windows 11, you can click Start -> Settings -> Windows Update -> Check for updates. To download and install the latest Windows updates, you can click Start -> Settings -> Update & Security -> Windows Update -> Check for updates. If you can’t find Windows Defender on your computer, you can update Windows 11/10 to the latest version. Windows Defender is included in Windows 10/11 system and is not available for a standalone download now.


With this guide, you can learn about and enable: Microsoft Security solution feature guide: Microsoft Defender for Office 365ĭefender for Office 365 provides integrated threat protection for your email and collaboration tools. Each guide briefly highlights five key product features and the value they provide, then points directly to step-by-step enablement instructions. This is why we recently published new Microsoft Security solution feature guides on Microsoft Defender for Office 365 and Defender for Endpoint. And when you’re ready to enable new features, you need clear guidance to make it happen. To get the most value from your Security solutions, you need to understand the business value of the different features they include to decide if, when, and how to go about turning them on.
