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

Learn how to manage background activity for apps to help save battery power in Windows.

Obtenga información sobre cómo activar Windows con una clave de producto o una licencia digital, comprobar el estado de activación y vincular su cuenta de Microsoft.

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

Learn how to redeem your Microsoft Rewards points for a huge variety of great products and sweepstakes.

Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.

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

Get help with Skype for Business. Skype for Business 2016 Training. Video: What is Skype for Business? Video: Download and install Skype for Business (video)

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。

With Edge Chromium, you can add multiple profiles. Profiles allow multiple users to operate in a shared environment while maintaining access to their personalized browser settings, bookmarks, and extensions.