When a user attempts to access their Office 365 account for the first time and is prompted to set up two-step verification using Microsoft Authenticator, they can follow these steps:
Download Microsoft Authenticator: First, the user needs to download the Microsoft Authenticator app on their mobile device from the app store corresponding to their operating system (App Store for iOS or Google Play Store for Android).
Sign in to Office 365: Once the app is downloaded, the user should navigate to the Office 365 website and sign in with their username and password provided by the company's administrator.
Set up two-step verification: Upon signing in, the user will be directed to a page prompting them to set up two-step verification. At this point, they should select the option to configure Microsoft Authenticator as their verification method.
Add account to Microsoft Authenticator: The user will open the Microsoft Authenticator app on their mobile device and select the option to add a work or school account, then choose to scan a QR code. They will then scan the QR code displayed on the Office 365 setup screen using their device's camera or enter the code manually.
Verify the setup: Once the account has been successfully added to Microsoft Authenticator, the user should verify the setup by performing a verification action, which may involve pressing a button or entering a numeric code generated by the app.
Complete the setup: After verifying the setup, the user will finalize the process on the Office 365 setup page. They may be prompted to re-enter their password as an additional security measure.
Confirmation: Upon completing the setup, the user will receive confirmation that two-step verification has been successfully configured using Microsoft Authenticator.
Once two-step verification has been set up, each time the user logs in to their Office 365 account from a new or unrecognized device, they will be prompted to enter their usual password and then verify their identity using Microsoft Authenticator.