Security key: Register your Microsoft-compatible security key and use it along with a PIN for two-step verification or password reset. For step-by-step instructions about how to verify your identity with a security key, see Set up security info to use a security key.

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

Sign in using Microsoft Authenticator. Microsoft Authenticator helps you sign in to your accounts if you've forgotten your password, use two-step verification or multi-factor authentication, or have gone passwordless on your account.

Select your version of Microsoft 365 below to learn how to activate Microsoft 365. Activate Microsoft 365 or a non-subscription version of Office. Activate Office that's pre-installed on a new Windows device. Activate an Office purchase or offer that's included on a new Windows device.

You can set up an authenticator app to send a notification to your mobile device or to send you a verification code as your security verification method. You aren't required to use the Microsoft Authenticator app, and you can select a different app during the set up process.

Check here for the known game issues that we're currently tracking and find out what you can do about them. Need help with an Xbox console, an Xbox game, or Xbox network? Find out how to get in touch with us.

Microsoft Authenticator is a free app that helps you sign in to all your accounts without using a password - just use a fingerprint, face recognition, or a PIN. You can use Authenticator to sign in to your Microsoft personal, work, school or other accounts. Authenticator can be used three ways:

中国仅提供有限的身份验证方法。. 用户可以将 Authenticator 设置为在其设备上接收可用于验证其身份的验证码，而不是使用推送通知进行双重验证。. 这些验证码的有效期为 30 秒。. 注意: 若要对工作或学校帐户使用验证码，IT 管理员必须在“身份验证方法”边栏 ...

To change notification settings for individual senders, under , turn a notification sender either on or off—or select a sender's name and then turn on or turn off notification banners, lock screen privacy, turn notification sounds on or off, and set the priority of notifications.

Downloading and installing Windows SP1 from the Microsoft Update Catalog. If you’re unable to install SP1 from Windows Update, you can download the installation package from the Microsoft Update Catalog and then install SP1 manually. Go to the Windows 7 Service Pack 1 download page on the Microsoft website.