Last ditch attempt to revive a broken sim

[Aerosoft Team [Inactive Account] 51562]

Two weeks ago my sim refused to start up even though I did all the advised things  and all that I could think of myself nothing worked. Until I searched for every folder on my system that had 'flightsimulator'' in to. I found at least 6, deleted them all, rebooted the system and started MSFS. It behaved as after the very first install and wanted to to a 72 Gb update. I was not hopeful but it solved the issue.