Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.

Learn how to activate Windows using an internet connection, automated system, or live support advocate.

Training: Get up and running quickly with our Outlook Quick Start. Learn how to add an email account and get started in Outlook.

Learn how to use Azure Authenticator with Microsoft 365. It makes 2-step verification really easy!

Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.

Windows 设备上的用户帐户名称显示已登录 Microsoft 帐户或工作/学校帐户的名称。 若要更改登录的用户，请选择任务栏上的 ...

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.

If you have multiple accounts in Outlook, when you compose a new email message, Outlook picks the default account as the From account.However, if you want to Reply, Reply All, or Forward a message, Outlook will send your message with the same account the original mail was sent to.For example, Cheryl has two accounts.

Digital signatures provide assurances about the validity and authenticity of digital documents.