I am having this same issue BUT the thing was - I could play the game after I changed the motherboard & CPU last month.
Today I had reformatted my PC due to an unrelated issue, and now with a fresh install, I’m facing this problem. So having done all the reset and what not, what can I do now?
EDIT: Now I’ve been through several support teams, none of them have been able to solve the issue. They’re asking me to reset the PC, which is nonsense because I already DID reset the PC before this issue is occurring. So am I just going to have to let my money burn because I can’t play MSFS which I’d paid for several times (first bought the standard, then upgraded to premium - which costs a chunk of change!)?