Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by:

This troubleshooter assists customers whose machines are not yet updated to the latest release, Windows 10 Version 1607. This update will initially be released only to a small set of targeted customers. This set will expand over time. Windows users can start the assistant from this article.

There are many ways to shut down your PC—you can turn the PC off completely, you can make it sleep, or you can hibernate the PC.

Find your Windows settings in a snap! Select the Start button, then select Settings .From there, browse the categories or use search to find what you're looking for.

Learn about Windows 11 minimum system requirements and how to assess your upgrade eligibility.

Most tools and options in Microsoft Edge are available when you select Settings and more > Settings.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Windows 11, version 23H2 ; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

Learn how to reinstall Windows on your PC and how activation works after it's installed.

Learn how to find which version of Windows operating system your PC is running and device specifications.