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

学习如何在 Windows 中解决 USB-C 问题，修复 USB 设备、端口和适配器无法正常工作。

After launching an Office app, you might receive a message that says Get genuine Office.. If you see this, we've determined that the Office product installed on your device isn't legitimate and you may be a victim of software counterfeiting.

Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.

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.

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。

Collections in Microsoft Edge helps you keep track of your ideas on the web, whether you're shopping, planning a trip, collecting notes for research or lesson plans, or just want to pick up where you left off the last time you were browsing the internet.

Learn how to receive a refund or exchange for items purchased from Microsoft.

Learn how to set up Microsoft Family Safety to manage screen time, filter content, and share location with your family members.

Obtenga información sobre cómo instalar, reinstalar o activar Microsoft 365 u Office 2019 en un equipo PC o Mac.