Learn how to sign in and create app passwords for Microsoft apps and devices that don't support two-step verification.

In certain countries and regions, mobile operator billing can be used as a payment option to buy subscriptions like Game Pass and content such as games, apps, music, HD movies, and TV shows on your Xbox console and Xbox.com.

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

Download the mobile app for Microsoft Teams To download the Teams mobile app, go to your mobile device and follow the link on our download page. Or download it from the iOS App Store or Google Play Store. Please note that Teams for your personal life is not currently available in China.

Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

除了少數例外情況，您只需要連結帳戶一次。 例如，如果您從 Game Bar 連結帳戶，該帳戶將會連結至 Windows 版 Xbox 應用程式以及您的主機上。 全部展開

在 Android 设备上安装 Authenticator Google Play 商店在中国不可用，因此只能从以下商店下载Microsoft Authenticator： 联想 Oppo – 搜索要从 Oppo 存储区下载Microsoft Authenticator。 三星

Keep up with your favorite games with Official posts from games, made directly by game developers in the Xbox app on mobile. You can engage with posts that have the latest news, clips, and polls.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.