UPDATE (2022-11-24 @ 1610Z): This issue is now resolved and players should be able to install MSFS normally. We apologize for the inconvenience.
We are aware of reports from some players experiencing an error when attempting to install MSFS on PC. The error states “You are missing packages that are essential to run Microsoft Flight Simulator. Please update the application and try again.”
We have escalated this to the appropriate support team, and they are currently investigating. We will provide more information when it is available. Thank you for your patience as we work to get this resolved.