First, make sure you’re in “Admin view.”
At the top of the screen click on “People.”
This will show you a list of all users.
Use the search bar along the top to type in the name of the user who needs to be deactivated, or scroll through the list of names until you find them.
Click on the user’s name.
In the top right-hand corner, you will see a red button called “Deactivate [Name].” Click this button to make their account inactive.