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

Learn how to use eye control in Windows to type with an on-screen keyboard, communicate with people, and control the mouse with your eyes.

Review the warranty terms, check your warranty status, and learn about the protection plans for your Microsoft device or accessory.

Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

Obtener información sobre las opciones de recuperación en Windows. Obtén información sobre cómo restablecer tu PC, volver a una versión anterior de Windows o usar un soporte físico para volver a instalar Windows.

Learn how reserved storage works in Windows to conserve disk space for temporary files, caches, and other files.

Training: Learn how to create a spreadsheet, enter data, and create a chart in Excel.

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.

To capture someone's attention in an email or meeting invite, type the @ symbol followed by their name within the message or invite. Doing so will highlight their name and prompt Outlook to add them to the To line, ensuring they notice, and add the @ symbol next to their message in the Inbox.

如果尝试登录到帐户，但收到一条消息，表示该帐户被锁定，则这是因为与该帐户关联的活动可能违反了我们的使用条款。. 如何解锁 Microsoft 帐户