You can use any phone number that can receive text messages; it doesn’t need to be associated with your account. We won't use or give out the phone number, and the code sent to it will expire after 10 minutes.

Important: If you turn on two-step verification, you will always need two forms of identification.This means that if you forget your password, you need two contact methods. Or if you lose your contact method, your password alone won't get you back into your account—and it can take you 30 days to regain access.

A manager needs an assistant to monitor email on his or her behalf. In this scenario, an assistant is granted the appropriate permissions to a manager’s folder or mailbox, but when they respond to messages, their responses are shown as coming on behalf of the manager.This type of sharing requires Delegate access permissions. For help with setting up delegate permissions, see Allow messages ...

注意: 如果知道密码，但只想更改密码，请转到“account.microsoft.com 安全”选项卡，然后选择“更改我的密码”。. 如果知道用户名和密码但已停止工作，请阅读我的用户名和密码已停止工作。

Windows Hello enables a sign in experience using facial or fingerprint recognition, or a PIN. While it offers a convenient and secure way to access your device, you might sometimes encounter sign in issues.

Cookies are small pieces of data stored on your device by websites you visit. They serve various purposes, such as remembering login credentials, site preferences, and tracking user behavior.

Get productive quickly with Microsoft 365 videos and tutorials. Explore Microsoft 365 training guides and tips to collaborate with anyone, anywhere.

Learn how to update Windows to ensure your device operates smoothly and securely with the latest features.

Windows 11, version 21H2; October 8, 2024—KB5044280 (OS Build 22000.3260) September 10, 2024—KB5043067 (OS Build 22000.3197) August 13, 2024—KB5041592 (OS Build 22000.3147)

If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.