![]() ![]() To erase you obviously need to boot from another medium or partition.ġ0.6 - hold c and boot off the 10.6 installer disk and select Disk Utility from the Utilities menuġ0.7 hold command and r keys and reboot into the hidden Lion Recovery Partition.įunny thing about Lion 10.7, you can't erase the whole drive while booted in the Lion Recovery Partition, because it's on the same drive your booted from. With Bootcamp, it's partition is named BOOTCAMP, don't select or the primary media, just your partition with OS X on it. If the 750.16 GB TOSHIBA "media" is selected and erased, both partitions are gone. Selecting either the Macintosh HD or Macintosh HD 2 is selecting a partition on the 750.16 TOSHIBA "media" The trick between 2 and 3 methods is making sure of what your selecting in Disk Utility on the left side. If something has gone missing after you reinstall macOS, you can always restore your Mac from the most recent backup.Well there are three ways to go about it.ġ: Simply reinstall OS X on top of the installed version and Software Updating until clear, this method keeps your files and most third party programs intact, unless those third party programs have "hooks" into OS X, which will get kicked out.Ģ: Erase just OS X partition and reinstall OS X again, this wipes out all user files and programs, it leaves other partitions alone, like your Bootcamp partition.ģ: Complete drive wipe of all partitions, all data, everything and reformat Who knows? The reinstall process itself might encounter an issue and accidentally delete some of your data. If you want to erase Mac and reinstall OS, CLICK 'Disk Utility' to erase the Macintosh HD Data partition of the startup drive. Consider backing up your data before you continue with the process. However, while this is a safe method, I would still recommend that you back up your data if you’re planning to reinstall macOS just to be safe. Here are the simple steps to complete the process: Press on 'Shift + Option + CMD + R' to boot your Mac into macOS Recovery. That’s how simple it is to reinstall macOS without losing data. Before you start, back up your Mac with Time Machine. WARNING: Erasing your Mac removes all the information from it. Not sure which macOS version to install? Check out our super handy guide. Select version: Table of Contents Erase and reinstall macOS You can erase your Mac and use macOS Recovery, the built-in recovery system on your Mac, to reinstall macOS. During the reinstall, your Mac may reboot several times. It may take an hour or more to reinstall macOS on your Mac. Follow the onscreen procedures to continue the reinstallation.Click Reinstall macOS (version name) > Continue.Enter your Admin password when prompted.FAQ To factory reset a MacBook or a Mac is a big move, but it is necessary especially when you prepare Mac for sale, trade in, or donate this computer. You can reinstall macOS without losing data by booting your Mac into Recovery Mode.įollow the steps below to reinstall macOS through Recovery Mode.įor Intel-based Mac, hold down CMD + R keys during startup, then release when the Apple logo appears.įor Apple Silicon Mac, hold down the power button until the Startup Options screen appears, then select Options > Continue. How to restore MacBook Pro/Air to factory settings 3. ![]() In case you’re not aware or you haven’t done so before, your Mac has a special recovery environment called macOS Recovery. How to Reinstall macOS Without Losing Data Through Mac Recovery Mode That being said, follow the steps below to safely reinstall macOS without losing data. That way, you are sure that your personal data will not be used in any way by the next owner. ![]() If you’re planning to sell your Mac, note that it would be best to factory reset it rather than reinstall macOS. Reinstalling macOS could also delete or fix corrupted files that may be affecting your machine’s performance. This is because it’s the most practical way of fixing things, rather than factory resetting your Mac and erasing all its data before reinstalling macOS. If you’ve been paying attention to most of our troubleshooting guides that involve issues with apps, features, and functionality, you know that more often than not, one of the fixes we suggest is to reinstall macOS. Read along to learn how to reinstall macOS without losing data. Hence, you do not need to restore them from your backup after reinstallation. And unlike factory reset, it won’t delete data on your Mac. When you reinstall macOS, you are just giving it a fresh start. Just to be clear, reinstalling macOS is not the same as a factory reset. Select the Mac you’re connected to, and then choose Actions > Advanced > Revive Device and click Revive. For those who are asking whether they can reinstall macOS without data loss, the straight answer is yes. ![]()
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