Windows 10: Microsoft Windows 10 authentication code stopped working on brothers computer and cannot...

How can a product code become invalid over night for windows and we cannot get it to work now no code wants us to but windows 10 again

:)

 

Microsoft Account authentication

After more research, I have found my answer. It looks like the issue was that Microsoft released a new Microsoft Authenticator app with the features first introduced in Microsoft Authenticator Beta. The new app received a prompt to approve access to my Microsoft
Account when signing on from a new PC, though I find it strange that the beta app wasn't directly upgraded to the new version of the app.

Microsoft now has three 2 step authentication apps available in the store for Windows 10 Mobile:

• Authenticator - original app from Windows Phone 8
• Microsoft Authenticator Beta - originally released to Windows 10 users when Windows 10 Mobile was only available on the Windows Insider program.
• Microsoft Authenticator - the official Windows 10 app no longer in beta

 

Microsoft Authenticator (beta) app in Store

Source: Microsoft Authenticator (beta)

 

Microsoft Selects Dolby Audio for Windows 10

it would've been great if microsoft added HEVC decoders, LAV filters along with other codecs with Windows 10, and developing WMP to be better than VLC, KMPlayer and such sorts of media players.

Nevertheless, this is good step for microsoft, by far.