# Start Arma 3 client in single player mode or EDEN editor
# Switch to another app or Windows file manger for example
# Wait about 1 minute
# Attempt to use Alt Tab to switch back to Arma 3 client
# The Arma client will display a black screen and will no longer respond
# Control-Alt-Del does not work to open task manager
The only option is to either sign out or reboot