Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

Hotmail est maintenant Outlook.com. Découvrez comment vous connecter pour accéder à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN.

Learn how to sign in or out of your Outlook.com email account, and get solutions for common login issues.

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

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。

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

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

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

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

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