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

Insert a hyperlink in a worksheet cell or specific chart element to link to a related file or Web page in Excel. You can also modify or remove hyperlinks.

Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

See how to arrange all your open windows using the mouse, keyboard, or the Snap Assist feature in Windows.

Explore OneDrive support, help, and learning resources. Learn how to protect your important files, documents, and memories with OneDrive.

An overview of location permissions and your privacy in the Microsoft Edge web browser.

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

Learn what to do when you see a warning message that your device does not meet Windows 11 minimum system requirements to upgrade.

In Windows 11, apps don't automatically get added to your desktop. Learn how to pin apps to your desktop or taskbar in Windows 11 or Windows 10.

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。