The FSX: SE open beta has now officially closed and access to the beta build of FSX has been revoked. We are currently aiming to release the update to all players within the next week. If you wish to remove the beta build from your PC please follow the steps outlined in this forum thread:
http://steamcommunity.com/app/314160/discussions/1/541906989416450278/#p1
We would like to say a big thank you to everyone who has taken the time to provide feedback during this process.
Microsoft Flight Simulator X: Steam Edition Team
Dovetail Games