MacOSX Lion includes a recovery partition allowing you to easily erase all data on your Mac and reinstall your OS. Re-install MacOSX: click on "Reinstall Mac OS X" > "Continue". This document, titled "MacOSX Lion - Reinstall Your OS Without Installation Disc," is available under.
Table of contents
- Step Two: Securely Wipe Your Hard Drive (Optional)
- Installing or Reinstalling OS X El Capitan (Only If You Have To)
- Make Your Mac Feel Like New Again With a Fresh Install of OS X
- How to Reformat a MacBook
Step Two: Securely Wipe Your Hard Drive (Optional)
Your Mac has to be ready. First thing, check device compatibility. The rules are not much different from the Mojave compatible Macs, except for a few older Mac Pro models that Catalina will no longer support. Found your Mac on the list? Simply backup an entire drive and go ahead with the installation. Another choice would be to test Catalina on a non-startup drive. If you have a spare drive or your startup drive is divided into volumes, this might be a good option to explore.
Again, this is the recommended option that will leave you with a high-performing Mac. It involves lots of cleaning and securing your files, though. You can take care of all the data stored on your old OS manually, or by using a few easy utilities. Every ancient app leftover that is hiding somewhere in the depths of your Mac may potentially hinder its performance.
Installing or Reinstalling OS X El Capitan (Only If You Have To)
CleanMyMac X can handle the junk before an upgrade. One more important detail, Apple will stop supporting bit applications in the new macOS So make sure you get rid of them, too. This will help you see the functionality that Catalina will be missing, and find the right alternatives in advance.
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As easy as that. You want the redundant files to go.
Make Your Mac Feel Like New Again With a Fresh Install of OS X
But you also want the needed files to stay. We encourage you not to ignore the backup process.
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It will help you roll back at any time with minimum loss. Before you clean install Catalina, we have to warn you there might be no going back.
First, because macOS The final part. Step 1 Set the MacBook Pro to restart. Tips Make a backup of all your personal data and information before erasing the hard drive. The reinstallation of your operating system could take up to an hour, depending on your Internet connection speed.
How to Reformat a MacBook
Plug the power adapter in so your computer doesn't turn off as it downloads the necessary files. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information. To submit your questions or ideas, or to simply learn more about It Still Works, contact us.
Warnings The format process will erase all information on the hard drive. Warning The format process will erase all information on the hard drive.
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