Use OneDrive as a cloud backup to share your files and folders with others. Learn how to control permissions, allow editing, or set expiration dates.

Learn about what effect closing a Microsoft account might have on your other apps and services.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

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。

Set the region, device language, and spoken language for your products and services.

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

There are some solutions you can try. First steps if your Surface Type Cover or Keyboard doesn't work. To try to resolve these issues, you can begin by following the steps below to get the latest updates, detach the Type cover or keyboard, force a restart, reattach the Type Cover or Keyboard, or confirm connectivity.. Get the latest updates

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

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

Aprende a instalar Windows 7 Service Pack 1 (SP1). Incluye información sobre cómo descargarlo, los requisitos y mucho más.