Maybe this one
https://support.microsoft.com/en-us/topic/your-phone-app-requirements-and-set-up-cd2a1ee7-75a7-66a6-9d4e-bf22e735f9e3
--please don't forget to upvote
and Accept as answer
if the reply is helpful--
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I have tried every - every - recommended help from Microsoft to finish setup of the Authenticator app. I have created a "Personal Account" in the app by using my Microsoft account email. Then every time I click on that account email I get a numeric password code and I have no idea what to do with it. I need to use the Authenticator app QR code reader to set up the Your Phone Companion sync with my Windows PC. So, how do I finish setting up the Microsoft Authenticator app with the mysterious password code? It would be most excellent if I could actually use the Authenticator app.
Maybe this one
https://support.microsoft.com/en-us/topic/your-phone-app-requirements-and-set-up-cd2a1ee7-75a7-66a6-9d4e-bf22e735f9e3
--please don't forget to upvote
and Accept as answer
if the reply is helpful--