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- #Os x utilities reinstall os x how to#
- #Os x utilities reinstall os x install#
- #Os x utilities reinstall os x software#
#Os x utilities reinstall os x install#
The computer will start up using the install media.
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Keep hold of them! Within around 10–15 seconds, you will be shown the OS X Utilities options.įor OS X versions preceding and including OS X 10.6 Snow Leopard, you will require either the grey OS X installation DVD that shipped with your Mac, or the retail DVD of an appropriate version of OS X for your Mac.įor Snow Leopard, or earlier, insert the appropriate DVD then press and hold the C key immediately after the start-up chime. To access these, turn on your Mac and hold the Command and R keys, simultaneously, immediately after you hear the start-up chime. For OS X 10.7 Lion, 10.8 Mountain Lion and 10.9 Mavericks, the necessary utilities are normally stored on a hidden recovery partition on your Mac. Launching OS X Utilities depends on what version of OS X your Mac is running. There aren’t many things more frustrating than taking a backup only to find that you are unable to restore from it as it has been corrupted in some way. More importantly, I am assuming that you have tested the integrity of your backup(s). I’m assuming that all of your important data has been backed up, already. Tip: There are plenty of tutorials on Mactuts+ to help you backup your data. This ensures that you have two separate backups, thereby halving the chances of data loss. I recommend taking a Time Machine backup and, separately, cloning your hard drive. The instructions that I will give, in this tutorial, will have catastrophic consequences if you have data that you need to keep and do not backup first. I can not emphasise this strongly enough. It may be that it is cathartic to get rid of a load of applications and just install the ones that you really need, or it may be that you are selling the machine – or passing it on – and you want to revert the machine to factory settings.īy doing this, you ensure that none of your personal data remains and the recipient is in receipt of a Mac with an operating system that is as fresh as when it first left the factory. There may be times that you do wish to start again, from scratch.
#Os x utilities reinstall os x how to#
In this tutorial, I will show you how to reformat the hard drive in your Mac and reinstall OS X for that factory fresh finish. There may be occasions, however, when you want to reformat your Mac's hard drive.
#Os x utilities reinstall os x software#
You will find that OS X is very stable in comparison, it defragments its hard drive on an ongoing basis and it does not get bogged down with additional software in the way that a Windows machine does. Unlike personal computers that run Microsoft Windows, it should not be necessary to completely reformat the hard drive, once a year, to reinstall the operating system.