Learn how to use drag and drop to transfer content between your Android device and PC.

Find out how to submit a request for a refund for a purchase of digital Xbox content.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

Learn how to use the taskbar features in Windows. Hide the taskbar, pin an app, change the location, and more with taskbar settings.

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。

Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

Windows 10 and 11 contain a large set of emojis. To insert one: Put your cursor where you want the emoji.

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