How do I remove administrator from school laptop?

How do I remove administrator from school laptop?
How to Delete an Administrator Account in Settings

Click the Windows Start button. This button is located in the lower-left corner of your screen.
Click on Settings.
Then choose Accounts.
Select Family & other users.
Choose the admin account you want to delete.
Click on Remove.
Finally, select Delete account and data.

How to Delete an Administrator Account in Settings
  1. Click the Windows Start button. This button is located in the lower-left corner of your screen.
  2. Click on Settings.
  3. Then choose Accounts.
  4. Select Family & other users.
  5. Choose the admin account you want to delete.
  6. Click on Remove.
  7. Finally, select Delete account and data.