Login as the old administrator.
Create a new account, choosing 'Computer administrator' in the wizard.
Now log-off & login with your new account details.
You should now be able to delete the old admin account from your new account. G
OnePlus 5 review
Alice Saey's mesmerising animation for Dutch singer Mark Lotterman
iPad Pro 10.5in (2017) review
Comment faire une capture d’écran sur un Mac ?