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The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

如果您購買的 Office 或 Microsoft 365 隨附產品金鑰，您可以在下方列出適用於您產品的網站上輸入產品金鑰。 輸入金鑰之後，您可以下載並安裝 Office，也可以為您的 Microsoft 365 訂閱續約。

您的 Microsoft 帳戶 會在許多工作上取代產品金鑰的作用，例如啟用 Microsoft 365 或重新安裝 Microsoft 365。 Microsoft 365 產品金鑰的常見問題 請查看以下部分，了解您是否需要 Microsoft 365 產品金鑰，以及如何處理金鑰（如果有）。

Learn how to install, reinstall, or activate Microsoft 365 or Office 2024 on a PC or Mac.

Learn how to set up your user account for multifactor authentication with Microsoft 365.

準備好安裝 Microsoft 365或 Office 2024了嗎？ 開始之前，請確保您的 PC 或 Mac 符合 系統需求。 如果您已兌換產品金鑰、重新安裝應用程式，或您已透過公司或學校指派授權，您可以略過並移至「登入」區段 ，以下載並安裝 Microsoft 365 或 Office。 不過，如果這是您 第一次 安裝 Microsoft 365或 Office，您可能 ...

Xbox Support ... Xbox Support

Important: Software and drivers that come with a printer via a disc might be outdated. The preferred method to install printer software and drivers from the manufacturer is to obtain the latest version by downloading it directly from the printer manufacturer's website. For more information on downloading updated printer software and drivers from the printer manufacturer, see the Download and ...

If you're moving from a Windows 7 or Windows 8.1 PC to a new Windows device, you'll find that the best way to get apps and games is through Microsoft Store. Microsoft Store is familiar on any device—you can search for free and paid apps like Adobe Reader, view their popularity and ratings, and download them to your device. When you install an app from Microsoft Store, it will follow you to ...