

If you don't have the OS X discs installation discs, then you can create a new administrator user account from System Preferences > Accounts, then logout from existing account, login to new account and delete the old account from System Preferences > Accounts. That erase free space option in Disk Utility is for making the deleted files non recoverable. You can't erase the internal hard drive without the OS X installation discs. My Name is ***** ***** I look forward to assisting you today with your question. We have a full list of which Macs run which versions of Mac OS X and macOS here.Hi and Welcome. macOS 12: Monterey (Star) – Octo(Latest: 12.6.3).macOS 11: Big Sur (GoldenGate) – Novem(Latest: 11.7.4).OS X 10.9 Mavericks (Cabernet) – Octo(Latest: 10.9.5).OS X 10.8 Mountain Lion (Zinfandel) – J(Latest: 10.8.5).OS X 10.4.4 Tiger (Chardonnay) – Janu(for Intel Macs) (Latest: 10.4.11).OS X 10 beta: Kodiak – September 13, 2000.


You’ll find a complete list of the latest release of each version of OS X and macOS, along version code names, along with internal code names (if available): Here’s an overview of every version of macOS and Mac OS X Apple has released.

List of macOS version names and latest versions
