Learn how to manage your Microsoft devices. Add, remove, register, or rename a device on your Microsoft account.

Learn how to download and install apps you need from your Microsoft 365 business subscription.

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

When your camera isn't working in Windows 11, it might be missing drivers after a recent update. It's also possible that your antivirus program is blocking the camera, your privacy settings don't allow camera access for some apps, or there's a problem with the app you want to use.

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.

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Learn how to update Microsoft Office on PC and troubleshooting tips for installing Office updates.

Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.

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

Si vous ne parvenez pas à vous connecter à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN, ou si vous ne savez pas comment vous connecter ou vous déconnecter, voici quelques solutions.