Banished from the Institute

Banished from the Institute is an Institute side quest in Fallout 4.

Detailed walkthrough
There are multiple ways to get banished:
 * Refuse to work with the Institute when you meet Father for the first time.
 * Kill any named character in the Institute.
 * Talk to Father negatively at the end of The Battle of Bunker Hill.
 * Board the Vertibird to the Mass Fusion building with the Brotherhood of Steel during Spoils of War.

To exit the Institute, simply head for the elevator and head up. Look for a bright red button in the room and push it. Walk into the circle and the emergency teleportation will activate.