在 Windows 上，打开任何 Microsoft 365 应用并转到“文件”>“帐户”以查看登录使用的帐户，并在必要时切换到其他帐户。 在 macOS 上，登录使用的帐户显示在“文件”>“打开”窗口的左上角附近。在 OneNote 上，它会显示在屏幕的左下角。

Turn on Find my device. When you set up a new device, you can decide whether to turn on or turn off the Find my device setting. If you turned it off during setup and now want to turn it on, make sure your Windows device is connected to the internet, has enough battery power so it can send its location, and that you're signed in to the device using your Microsoft account.

To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts.

Introducing Microsoft Phone Link Our evolution of the former Your Phone app brings a new name to the user experience. With the new Phone Link on your Windows PC and the new Link to Windows app on your Android device, accessing your mobile apps and content has never been easier!

1. 使用Microsoft帐户登录. 系统将提示你使用 Microsoft 帐户登录 . 如果移动设备上已有Microsoft帐户，系统会要求确认帐户，然后单击“ 继续”。 如果你的移动设备上没有现有的Microsoft帐户，系统会要求你登录帐户或创建一个新帐户，然后单击“继续”。 2.

提示: 登入時，如果您下次想要直接移至信箱，請在 [保持登入?] 提示中選取 [是] (不建議用於共用電腦)。 或者，選取 [不要再顯示這個] 方塊，然後選取 [否]，這樣每次都會提示您輸入密碼。. 如果您無法登入或忘記您的使用者名稱或密碼，請使用我們的 [登入疑難排解員]。

To get support in Outlook.com, click here or select Help on the menu bar and enter your query. If the self-help doesn't solve your problem, scroll down to Still need help? and select Yes.. To contact us in Outlook.com, you'll need to sign in.

Billing & payments. Your dashboard is also where you can: Buy, renew, or cancel a subscription.

Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

无法使用 Microsoft 或 Xbox 礼品卡购买 Xbox 360 商城的内容或 Xbox One 上的 Xbox 360 内容。 购买 Microsoft 或 Xbox 礼品卡时，确保使用的货币与接收人的帐单帐户相关联的货币相匹配。