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If you want to erase Mac and reinstall OS, CLICK 'Disk Utility' to erase the Macintosh HD Data partition of the startup drive. Re-install MacOSX: click on ' Reinstall Mac OS X' > 'Continue '. Select the Mac OS Extended (Journaled), give a name to your disk and click on Erase. Select the startup disk and go to the Erase Tab. Select ' Disk Utility ' and click on Continue. Consider backing up your data before you continue with the process. Turn your Mac on, while holding the CMD + R keys down. You can access recovery without a partition using Network Recovery: hold Command+Shift+R while turning on your Mac and it will download the Recovery features for you. Failing that, you can create a bootable USB installer, and boot from that by holding "Option" while turning on your Mac. Here are the simple steps to complete the process: Press on 'Shift + Option + CMD + R' to boot your Mac into macOS Recovery. Don't forget to make a backup before you reinstall in case something goes wrong. If neither of these options work, don't panic! You've got a couple of options yet. 1 Answer Sorted by: 9 You can do an Archive & Install which will reinstall OS X but keep your files. On those devices, hold "Option" while turning your computer on, then select the recovery partition instead. If you're using an older Mac (from 2010 or earlier), there's a chance that you can't use Recovery Mode. Your Mac will boot into the recovery partition. If you have a newer Mac with an Apple Silicon chip, shut down your machine, then start it up and keep the power button held down. For Mac models with an Intel processor, you'll need to reboot and start your Mac up while holding Command+R. Your Mac's Recovery Mode is a treasure trove of useful tools, and it's the easiest way to wipe your computer and start from scratch. If nothing goes wrong, which usually will be the case, a reinstall of an OSX will not touch any user data. Follow the steps below to reinstall macOS through Recovery Mode. Now, after creating a backup of Mac system data, you can upgrade or reinstall the Operating System without the fear of losing data. You can reinstall macOS without losing data by booting your Mac into Recovery Mode. All the data from your Mac Desktop and Documents folder will be copied to iCloud Drive as a cloud backup. If you're using a Mac with Apple silicon Press and hold the power button on your Mac. Follow these steps: Click the Options button, select Desktop & Documents Folders, and then click. If you're not sure whether you're using a Mac with Apple silicon instead of an older Intel-based Mac, you can try the steps for both. 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.Step One: Boot From Recovery Mode or an Installer Start up from macOS Recovery To reinstall from macOS Recovery, your Mac must be able to connect to the internet. 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. Select the Mac you’re connected to, and then choose Actions > Advanced > Revive Device and click Revive. If you booted from a USB disk, click 'Continue' to advance to the installer. If you booted from a functioning recovery partition, click the 'Reinstall macOS' button to get started. Selecting either the Macintosh HD or Macintosh HD 2 is selecting a partition on the 750.16 TOSHIBA "media" With your drive wiped clean, you are now ready to reinstall macOS. When you see a window with the option to reinstall macOS, this means your Mac has started up from Recovery. Then choose Reinstall macOS Monterey or Reinstall. The trick between 2 and 3 methods is making sure of what your selecting in Disk Utility on the left side. Option 1: Reinstall macOS without Losing Data From Internet Recovery Turn on your Mac and go to Options. 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
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