Mac disk utility partition grayed out need to factory reset

Mac disk utility partition grayed out need to factory reset how to#

Select 'Disk Utility' and click 'Continue. 21 hours ago &0183 &32 But when I rebooted in MacOS, I discovered that my main Mac partition was gone, replaced with a partition labeled 'diskOs2'. After a few moments, the macOS Utilities window should appear - this is known as Recovery Mode.Д¤. If you cannot delete volumes like drive C, EFI system partition, recovery/OEM volume, and volumes on removable device in Disk Management, here are solutions. Keep holding it until you see either the Apple logo, or an animation of a spinning globe.ДЈ. Press the power button to turn it on, then immediately press and hold Command (вЊ) + R. The history on this drive: It is a 2 TB Seagate external hard drive that the Mac store reformatted for me to use with Time Machine. If I mouse over it, it reads: 'Disks with Master Boot Record Partition Maps cannot be partitioned'. Once you're ready to wipe your Mac, do the following:Дў. Within disk utility, the partition icon is grayed out. If you're giving your computer away, also make sure that you've signed out of iTunes, iCloud, and iMessage - there's a chance your Apple ID data will remain on the drive after you reset it, and you don't want anyone gaining access to your account. You can also backup onto iCloud, or manually move the files you want to save onto an external drive.

You can do this through Time Machine, Apple's official backup application, which will copy all your files onto an external drive. In the Recovery app window, select Reinstall for your macOS release, click Continue, then follow the onscreen instructions.

Mac disk utility partition grayed out need to factory reset how to#

Check out the products mentioned in this article: MacBook Pro (From $1,299.99 at Best Buy) How to wipe a Mac computer with a factory resetД«efore anything, if you don't want to lose the files you have saved on your computer, you should back them up. Choose Apple menu > Shut Down, press and hold the power button until Loading startup options appears, select Options, click Continue, then follow the onscreen instructions.