To use Microsoft 365 on your new device, you can activate Microsoft 365 as a 1-month trial of Microsoft 365 Family. You can also buy Microsoft 365 or a non-subscription version of Office, add Microsoft 365 to an existing Microsoft 365 subscription, or enter a product key from a new product key card.

Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

Some Office 2019, Office 2016, and Office 2013 products come with a product key. If yours did, before installing Microsoft 365 for the first time, sign in with an existing or new Microsoft account and enter your product key at office.com/setup. Redeeming your key is what links your account with Microsoft 365 so you only have to do this once.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

所有 Xbox 數位代碼的長度都是 25 個字元，包含數字和英文字母，且格式為五個字元一組，共五組 (xxxxx-xxxxx-xxxxx-xxxxx-xxxxx)。. 如果您嘗試在 Windows 或 Xbox 裝置上兌換代碼，請確定您輸入的所有 25 個數字都正確。. 若要深入了解 Xbox 禮品卡和代碼，請瀏覽：. 了解 ...

If you can't sign in to your Outlook.com, Hotmail, Live, or MSN email account, or you're not sure how to sign in or sign out, here are some solutions.

For Microsoft 365 operated by 21 Vianet go to login.partner.microsoftonline.cn. For Microsoft 365 Germany go to portal.office.de. This completes the download of Microsoft 365 to your device. To complete the installation, follow the prompts in the "Install Microsoft 365" section below.

Outlook for Windows and Outlook for Mac are included with your Microsoft 365 subscription, are available as part of several different Office 2016 suites and can be purchased as standalone programs. The two versions do share many of the same features, but there are key differences as well.

如果無法登入您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶，或者您不確定如何登入或登出，請嘗試這些解決方案。.

Outlook 網頁版 是組織使用的網頁版 Outlook。. 您必須使用公司或學校帳戶登入，才能存取這個網頁版的 Outlook。. 您的公司或學校帳戶通常會由組織中的人員指派給您。. 附註: 若要使用 Microsoft 帳戶存取網頁版 Outlook，請參閱 如何登入或登出 Outlook.com。.