Step 1: Login to Drupal site admin dashboard
Step 2: Now click on the People link and go to ‘Administration’ menu
Step 3: Click on the ‘List’ option on top of the screen to view the list of existing users.
Step 4: Now choose the respective user from the list and click ‘Edit’ to change the username, email Address, and password for the new user.
Step 5: Click on ‘Save changes’ to save that changes that you made.
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