Hi guys starting up msfs2020 this morning i get the opening screen with syncing data bottom right hand of screen it’s been going now for 6 hours.
Any help
Peter Wright.
You have patience for 6 hours. 
I would end task and restart your PC.
I have done this but when I start pc back up it goes to the same screen when starting msfs
Try logging out of the Xbox App and log back in.