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

如果退款要求獲得核准，它將顯示為您的 Microsoft 帳戶上正在處理中。 在處理退款期間，您將無法再存取數位遊戲產品。 退款可能需要幾個工作天或更長時間才能顯示在您的帳戶中，因此您可能需要諮詢您的金融機構，以了解適用的付款方式何時到帳。

A digital signature attached to an email message offers another layer of security by providing assurance to the recipient that you—not an imposter—signed the contents of the email message. Your digital signature, which includes your certificate and public key, originates from your digital ID. And that digital ID serves as your unique digital mark and signals the recipient that the content ...

Find answers to some of your questions about Xbox enforcement actions.

With two-step verification, you'll get a security code to your email, phone, or authenticator app every time you sign in on a device that isn't trusted. Need more help?

Learn about the settings for mobile apps in Windows, and how to adjust them with the Windows Subsystem for Android™ Settings app.

Which mobile apps do I need, and where do I get them? Xbox has apps for setting up new consoles, purchasing games, and managing family screen time right on your phone or mobile device. Here's a rundown.

在Outlook中，你可以為電子郵件建立一個或多個個人化簽名。 你的簽名可以包含文字、連結、圖片和圖片 (，例如你的手寫簽名或標誌) 。

See how to view the details for signatures and certificates.

This page provides support links for home users and support phone numbers for business users.