Learn different ways to locate your BitLocker recovery key in Windows, and learn about how BitLocker might have been activated on your system.

Pruebe estas soluciones si no puede iniciar sesión en su cuenta de correo electrónico de Outlook.com, Hotmail, Live o MSN, o si no está seguro de cómo iniciar o cerrar sesión.

Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.

Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.

Learn how to check if your PC is capable of running TPM 2.0 or how to enable TPM 2.0 to upgrade to Windows 11.

你可以使用安装介质（U 盘或 DVD）来安装 Windows 的新副本、执行全新安装或重新安装 Windows。 要创建安装介质，请转到软件下载网站，你可以在这里找到分步说明。 在该网站上，你可以选择 Windows 版本，并使用 U 盘或 DVD 创建自己的安装介质。

Update Surface devices and Windows. Download the latest drivers and firmware updates to keep your Surface devices performing their best.

如何将 IF 函数 (与 Excel 中) AND、OR 和 NOT 函数结合使用，以在给定值之间进行逻辑比较。

Learn how to sign in or out of your Outlook.com, Hotmail, Live, or MSN email account with Microsoft Support's step-by-step guide.

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: