Edit and block users on the Users tab in the admin WP.
Editing Existing User Accounts
- In the list of users on the Users tab of the admin WP, click Edit  next to the user that you want to edit. next to the user that you want to edit.
- Edit the user’s details in the page that opens as described in the Creating New User Accounts article.
- Save the changes.
Blocking User Accounts
- On the Users tab of the admin WP, click Block  next to the user that you want to block. next to the user that you want to block.
- Click Block in the dialog box that opens. 
- Close the confirmation message. The blocked user no longer has access to the system and is no longer displayed in the list on the Users tab.