Get more information about managing your Xbox subscriptions, issues with billing, and more.

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

Xbox Support ... Xbox Support

連絡 Microsoft 支援服務。尋找常見問題的解決方案，或向支援專員尋求協助。

Learn how to redeem prepaid codes for Xbox games, subscriptions, or downloadable content using your account.

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。

了解如何新增安全性資訊以保護您的 Microsoft 帳戶。

To learn about digital signatures (also known as digital ID), what they can be used for, and how to use them in Word, Excel, and PowerPoint, see All about digital signatures. Create a signature line in Word or Excel (desktop) In the document or worksheet, place your pointer where you want to create a signature line. On the Insert tab, select Add a Signature Line in the Text group. In the ...

Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.

A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...