Fixing Forza Horizon 6 Sign-In Error on PC

Players of Forza Horizon 6 on PC may encounter the "Sign In Required" error, which prevents them from starting the game despite a successful login. This issue arises when the game fails to receive a usable Xbox profile, even if Steam or the Microsoft page confirms a successful sign-in. The problem is tied to the game's inability to properly link the Xbox profile to the Steam account, which is necessary for both the Steam and Microsoft Store editions of the game.

The error can manifest in different ways, such as the absence of an Xbox sign-in window, the display of the wrong gamertag, or a cropped sign-in window. The first step to resolve this issue is to verify and complete the Xbox profile link. Players should ensure that their Microsoft account has an Xbox gamertag and that Steam is linked to the correct profile. If the wrong profile is attached, players can sign out and sign back in with the correct Microsoft account.

If the issue persists, the next step is to clear the saved Xbox login credentials. This involves removing entries beginning with "Xbl" from the Windows Credential Manager. Additionally, players can refresh the Xbox Identity Provider cache by renaming its AC folder. These steps help reset the Windows identity state that may be causing the loop.

Finally, players should update and repair the Xbox app, Microsoft Store, and Gaming Services. This includes checking for updates, running the official Gaming Services Repair Tool, and ensuring that all necessary services are running properly. By following these steps, players can resolve the "Sign In Required" error and enjoy Forza Horizon 6 without interruptions.