It opened once after I completely nuked windows and reinstalled everything, but now it’s back to
Microsoft Flight Simulator is currently not available in your account. Make sure you are signed in to the Store and try again. Here’s the error code, in case you need it: 0x803F8001
even with store set to offline.
I have to add, and I thought in the beginning that’s just a fluke, that every time I open it I get a message that “Microsoft Store Package Dependency Installer” wants to change something. This might be related to this problem.
Do you want to know what fixed it in the end after over a day of trying stupid things and MS even acknowledging that their “Gaming Services” is broken? Turns out you need to be signed into windows with the same account you are signed into store and Xbox. Then suddenly it worked. No one tells you that. And frankly it’s a ridiculous requirement, why do I need to be signed into 3 different things for a game to be able to run?
Microsoft has always been like this. I remember in older versions there were problems galore. Forums and experienced simmers are a good way to help each other.