If you are a Mac user, there are a few ways to delete a user. The first way is to use the Finder. To delete a user, open the Finder and type the following command: Delete User The second way is to use the System Preferences. To delete a user, open System Preferences and click on Users & Groups. In the Users & Groups pane, click on Add User. Type in the name of the user you want to delete and click on Add User. The third way is to use Terminal. To delete a user, type: sudo rm -rf /Users/username/Library/Application Support/AppleWebKit/534.36 (or sudo rm -rf /Users/*/.bash_profile )