Find out more about Xbox digital codes and gift cards, and how to troubleshoot issues redeeming content.

When you back up your files, apps, and settings in the cloud using your Microsoft account, you get 5 GB of free cloud storage and other benefits that protect your files with the latest security and make everyday tasks easier.

Use Find my device to locate and lock your lost or stolen Windows devices.

Installer Microsoft 365 pour la première fois. Certains produitsOffice 2019, Office 2016, et Office 2013 sont fournis avec une clé de produit.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Discover the latest updates for Windows 10, including improvements and fixes, known issues, and guidance on how to get the update.

When you’re connected to the internet and using a proxy server while browsing the web, that traffic goes through the proxy server instead of coming directly from your Windows 11 PC.

Learn how to use eye control in Windows to type with an on-screen keyboard, communicate with people, and control the mouse with your eyes.

Learn how to troubleshoot and fix problems setting up your email in Outlook.

This article answers common questions about Microsoft Authenticator. Select the headings below to see more information.