Learn how to change the power mode on your Windows PC to preserve your battery, limit notifications, and background activity.

Learn how to install Windows 7 Service Pack 1 (SP1). Includes info about how to get the download, requirements, and more.

Manually download a language for Cortana speech. Go back to Settings > Time & language > Language, select your new language, and then use the up-arrow button to move it to the top of the list and make it the default.

IMPORTANT This update is not needed and will not be offered if your Windows Recovery Environment (WinRE) meets any of the following conditions: If the WinRE recovery partition does not have sufficient free space.

Aprende a solucionar problemas de Bluetooth en Windows. Resuelve problemas al conectar un dispositivo o accesorio Bluetooth.

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

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

Learn how to make items on the screen appear larger by using Magnifier in Windows.

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

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。