If an Administrator account is deleted, then the whole system will be in a state of chaos. That’s because there is no one to manage the system and it will be difficult for other users to log in and use the device.
If you have a known administrator account on your Mac, you can use that to recover the administrator account. To do this, open System Preferences and go to Users & Groups. Click the lock icon in the bottom left corner of the window and type in your password. In the list of users, click the Administrator account and then click “Reset Password.” When prompted to enter a new password, type it in twice and click “Reset Password” again.
You can’t. Windows 10 is designed to prevent users from making any changes to the system.
You can enable the administrator account without admin rights by following these steps:Create a new user account with administrative privileges.Log out from your current account and log in to the new one.Now you have an administrator account with no admin rights.
When you delete an admin account from Mac, all the files and folders that were created by that account are deleted. If the account was used to make changes to system settings, they will also be reverted.