Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Learn how to install Windows 11, including the recommended option of visiting the Windows Update page in Settings.

Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

Download the latest Windows update from the Windows Update page in Settings for your device when it becomes available.

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

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

How to send automatic out-of-office replies from Outlook (depending on the type of email account you have).

Note: If you start to play a DVD or VCD in the Player Library, the Player automatically switches to Now Playing mode. The Blu-ray Disc format is not supported in Windows Media Player. To play a Blu-ray Disc, you need to use a non-Microsoft program that supports Blu-ray playback and a device capable of reading Blu-ray Discs.