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

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

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。

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.

There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you, or use our troubleshooter to help guide you.

Learn new and useful keyboard features, tips, and tricks for Windows with this overview from Microsoft Support.

Extensions, or add-ons, are simple tools that customize your browser experience and offer you more control. Here's how to add, turn off, and remove them in Microsoft Edge .

Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

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

Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.