Mistakenly I deleted the os my Mac how do I get it back on
Restart with the Command and R keys held down. If the computer's firmware is too old for that to work, insert a compatible Mac OS X install DVD.
In either case, open the Installer. If you encounter any issues, describe them in this thread.
(170838)
Restart with the Command and R keys held down. If the computer's firmware is too old for that to work, insert a compatible Mac OS X install DVD.
In either case, open the Installer. If you encounter any issues, describe them in this thread.
(170838)
Depending on the age of your computer, try booting into Internet Recovery (command - option/alt - R on a restart). It is a slow process. This will install the newest OS that the computer is compatible with. Reformat the drive using Disk Utility/Erase Mac OS Extended (Journaled), then click the Option button and select GUID. Quit Disk Utility. Then install the OS. When the computer restarts, you can use Setup Assistant to restore your data from Time Machine.
Still shows the same page
Mac OS
