Microsoft continues to patch Windows 10 with an Insider build to address single sign-on issues stemming from changes made to the European Digital Markets Act and Edge freezing when using Internet Explorer mode.
How to fix sign-in problems in Windows 10
In December 2023, Microsoft said that one of the ways to comply with the Digital Markets Act (DMA) in the European Economic Area (EEA) was to change how signing in to apps on Windows worked.
If a user with a region set to an EEA country logged on to Windows, the first application they accessed displayed a prompt asking the user if they wanted to use the credentials used to log on to Windows.
All those months ago, Microsoft promised: "If the user chooses to use the same credentials they used to sign in to Windows, this message will not appear again."