How Reinstall Mac Os X Without Disc

All you need is a connection to the internet. If you booted from an usb disk click continue to advance to the installer. But they re also what you do if something really bad happens to the copy of os x that you boot your mac from or if the version of os x on your mac is earlier than 10 10 el.

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Select reinstall macos then click continue.

How reinstall mac os x without disc. A confirmation message will appear informing you about the reinstallation details. Format an external hard drive for mac os x. Reinstall mac os x without losing data when you get the macos utilities window on the screen you can just click on the reinstall macos option to proceed. These discs are available for os x snow leopard os x lion and os x mountain lion.

This option reinstalls the version of macos stored on your computer s built in recovery disk including any updates that you installed. How to restore your mac back to it s factory settings with yosemite os x without a disc. If you re unable to use internet recovery mode or create a bootable usb installer you can still use a mac os x installation disc. The installation process will begin.

Afterward you simply need to follow this basic drill to reinstall macos on your system. Create a bootable install usb drive of mac os x 10 11 el capitan how to. Macosx includes a recovery partition that allows you to easily erase all data on your mac and reinstall your os without an installation disc. Follow the onscreen instructions.

Dual boot mac os x mavericks 10 9 yosemite 10 10 how to. Reinstall macos from the built in recovery disk on your computer. The following instructions do triple duty. This works for imac macbook macbook pro mac mini macbook air etc.

If your mac is really old as in so old it s running mac os x snow leopard or older it will not have a recovery partition the only way to reinstall the os is to use the discs that shipped with. Press and hold command r until the utilities window appears. Of course they re what you do to install os x for the first time on a mac or a freshly formatted hard or solid state disk. This article will show you how to get started.

If your mac is from 2012 or earlier there was an installation disc in the original box. Use a mac os x installation disc. Make sure that you keep your mac turned. With your information wipe complete you are now ready to reinstall macos.

If a wireless network is available you can choose it from the wi fi menu which is also available in macos recovery. If you booted from a functioning recovery partition click the reinstall macos button. Hunt down space hogging files on your mac with disk inventory x how to. Macos recovery makes it easy to reinstall the mac operating system even if you need to erase your startup disk first.