Learn how to identify and open encrypted and protected emails no matter what email client you're using.

如何兌換禮品卡、Xbox 下載代碼或權杖 Microsoft 和 Xbox 禮品卡、下載代碼和令牌的運作方式相同：兌換到您的 Microsoft 帳戶後，您可以在 Microsoft Store 網路商店、Windows 或 Xbox 上花費餘額，並且您可以下載最新的應用程式、遊戲、電影和電視節目。 在大多數國家或地區，您也可以購買 Surface、Xbox 和配件 ...

Get an error message or error code when making a purchase on Xbox? Find out what they mean.

瞭解如何在行動裝置、Windows 裝置或 Xbox 主機上兌換 Microsoft/Xbox 禮品卡或其他代碼。

Xbox Support ... Xbox Support

將安全性資訊新增至您現有的 Microsoft 帳戶 於以下位置登入您的帳戶： Microsoft 帳戶 選取 [進階安全性選項] 區段。 注意：我們可能會要求您在線上輸入透過簡訊或電子郵件所收到的安全代碼，以確認您是帳戶擁有者。 在 [證明您是誰的方式] 下，選取 [新增新方式來登入或驗證]。 請遵循提供的指示 ...

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If you tried to sign in with your Microsoft account and you received a message that said: "Your security info change is still pending" or "You can't access this site right now" It's because all the security info (such as alternate contact methods) that you previously added to your account was removed and replaced with new info. You need to wait 30-days for the changes to take effect.

Support for Windows 10, Office 2016 and Office 2019 has ended on October 14, 2025. Learn more about your options for Windows 10 or for Office.

Download Microsoft Authenticator Microsoft Authenticator is a mobile app that helps you sign in to all your accounts without using a password.