Hotmail está ahora Outlook.com. Aprenda a iniciar sesión para acceder a su cuenta de correo electrónico de Outlook.com, Hotmail, Live o MSN.

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

Find out how to fix sound or audio problems in Windows.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Learn how to find and change settings in Windows. Find your Windows settings in a snap! Select the Start button, then select Settings .From there, browse the categories or use search to find what you're looking for.

PC に Office 2013 または Office for Mac 2011 をインストールする方法について説明します。

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.

查找 Windows 7 或 Windows 8.1 的产品密钥. 卸载或重新安装 Windows 7 或 Windows 8.1 时，通常需要产品密钥。 通常，如果购买的是实物 Windows 拷贝，产品密钥应该在标签上或者在 Windows 随附包装盒中的卡上。