Time taken to load very first flight after installation

[willisxdc]

MSFS doesn't start anymore

Generally we have a rash of these issues every update. The common denominator is usually those with questionable bandwidth. The sim requires a connection to the servers and Xbox for authentication. When that fails so does the sim. On update day, there is a spike of users connecting all at once. If your connection is poor, (server ping, not provider speed rating), you will have issues.

This could be part of your problem too…