Deleting a User Profile from your PS4

You can delete any user profile from your console at any time. To do so, just follow these steps:

Access the [Settings] menu.
Select the [Initialization] option.
Select [Delete User] from the list.
Highlight the user profile that you wish to delete, and press [X].
If the user has the PS4 set as their Primary console, you will have the option to [Deactivate] the PS4 for that user.
Select [Delete] in order to remove that user and all their data from the system.

Please remember that when you delete a user profile from your PS4, the following will occur:

All game save data and screenshots generated by that user will be erased from the hard drive.
Any game licenses or applications that were purchased by that profile and were shared will no longer be available, unless a different profile on your PS4 also owns the license and/or has your PS4 registered as their primary console.
Any parental control restrictions set by the deleted profile will remain on your PS4, until they are changed via another Master (i.e. non-sub) account.