Some people with other computers on the same network were logged into a different Microsoft account at the same time. Log out of any MS accounts on PC
s on your network (assuming you have other PCs at the same property.Makes sure you have ADMIN privilege's in Windows, and you are signed into the right account when logging in to the same log-in account to download the game.
For myself, I had to log in to windows 10 on the Flight Sim account I bought it with. Then Download; have it on the PC, then I ran the load (takes ages on a normal gaming rig); then I ran it; later I logged out, and went back and logged into my other (main) Gaming PC with a different log-in to Windows, and started Microsoft Store and Downloaded on the other PC I usually game on.
Half of the problem has likely been Microsoft employing minority hires, rather than employing staff based on MERIT.
Best of.
I had a new desktop gaming system built just for Microsoft flight Sim. I set my computer high above the requirements that Microsoft asked to run the game and still to no avail... Just a lil upset!