Microsoft Flight Simulator 'Please insert game disk' error.
Microsoft Flight Simulator (2020) why is msfs2020 asking me to insert a game disc? Sign in to follow this. Followers. AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs.