Open the Room you want to manage.
Click the arrow next to the manage activation button from the menu bar, and select Deactivate Room from the drop down menu.
The Deactivate Room dialog asks for confirmation to deactivate the room. This will stop you entering any results for this room. Click the Yes button to continue.
At this point you can change the Deactivation date, and set it in the future or past. Choose a date from the calendar and click the Select button to continue.
The Room Deactivated dialog will confirm that the room has been successfully deactivated.