Learn how to create a OneDrive backup on your PC. Set up OneDrive PC folder backup to access, manage, stop, or fix problems with PC folder backup.

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

Get the steps for turning Windows Defender Firewall on or off.

如果上述步骤都不能修复你的蓝牙问题，请使用 Windows 反馈中心报告错误。 这可帮助 Microsoft 确定此问题的根本原因。

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

How to sort and organize your Excel data numerically, alphabetically, by priority or format, by date and time, and more.

Internet Explorer 11 support ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can open it with Internet Explorer mode in Microsoft Edge.

Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders.

Get help with using mail, calendar, and contacts on Outlook.com.

How to use Outlook rules to automatically move email messages to folders, flag messages for follow-up, respond to messages, create custom rules, and more.