Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Microsoft Copilot; Microsoft 365

了解在 Windows 中查找 BitLocker 恢复密钥的不同方法，并了解如何在系统上激活 BitLocker。

Découvrez comment créer un support d’installation pour l’installation ou la réinstallation de Windows 7, Windows 8.1 ou Windows 10.

Learn how to get Microsoft account help, troubleshoot sign in issues, keep your account secure, and manage your Microsoft account dashboard.

Keyboard shortcuts are keys or combinations of keys that provide an alternate way to do something you'd typically do with a mouse. Here’s the list for the new Microsoft Edge and Microsoft Edge for Mac.

It's easy to attach pictures, files, and other items to your Outlook messages. Outlook keeps track of the documents you’ve recently worked on, whether they're stored on your computer or saved in OneDrive (cloud only).

Learn how to troubleshoot problems updating Windows. Find answers to common questions and issues installing Windows updates.

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

If you’ve forgotten your Microsoft account password, learn how to do a password reset online or by using your Xbox console.

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.