Why did my Mac reinstall OS?
The main reason most people would reinstall macOS is because their system is completely messed up. Maybe error messages pop up constantly, software won’t run correctly, and other usability issues prevent you from working normally. In extreme cases, your Mac might not even boot.
How do I restore my Mac Mavericks to factory settings?
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Is there a way to reinstall OS X El Capitan?
Use Internet recovery – Command + Option + R – then use its disk utility to erase your hard drive and then choose to reinstall the OS. That should result in installing mavericks and is in addition to the article linked to below.
How do I upgrade from Snow Leopard to El Capitan?
To upgrade to El Capitan you must have Snow Leopard 10.6.8 or Lion installed. Download El Capitan from the App Store. Sign in using your Apple ID. El Capitan is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
Do you need to reinstall Mavericks on your computer?
A late 2012 came with Mavericks (10.8.x). That is what you will need to reinstall on the computer as any newer OS downloaded from the app store is tied to your Apple ID and the license is NOT transferable. You must remove any software downloaded from the app store or the buyer will be working with a pirated OS which will present problems.
How can I reinstall macOS on a laptop?
NoahL ‘s comment is spot on: try Internet Recovery (Command+Option+R). I was trying to reinstall macOS on a laptop. The on-disk recovery kept giving me this error message after I gave it my AppleID in the reinstall wizard: This item is temporarily unavailable. Try again later. I retried two weeks later, and still got the same error.