Why can’t I delete admin account on Mac?
Please open system preferences > users and groups > open pad lock ( enter admin name & password ) , select the user that is to be deleted , click on minus sign on bottom side . A window appears select the last option as in screen shot .
How long does it take to delete user on Mac?
In my case it indicated a one pass random erase would take about 9 hours, and a one pass zero fill erase would take about 1 hour. One step which should be added to this list is to remove the incomplete DMG backup file of the user’s account, created by the interrupted task.
How do you restore a Mac to factory settings?
Factory reset. You need to put your MacBook ($639 at Amazon) into Recovery Mode in order to erase all of your data and reinstall MacOS. To enter Recovery Mode on an Intel-based Mac, restart it and immediately press and hold Command-R. You can release the keys once you see the Apple logo.
How do I factory reset my iMac 2011?
After the iMac shuts down completely but before it begins to restart, hold down the Command (⌘) and R keys at the same time. The Mac will display the macOS Utilities menu, from which you can reinstall Mac OS.