Macos High Sierra This Disk Is Locked



Problem:Trying to upgrade to macOS Sierra on my MacBook pro (15-inch, Mid 2012) and I keep getting an error saying that my disk is locked.So I’m not able to select the hard disk to install the OS.Tried rebooting it just brought be me back to the macOS Utilities menu.Tried reinstalling the macOS option one more time and still got the disk is locked error.

  • Boot disk is locked high sierra locked recovery. I used install disc creator for the install disc, this worked well once I had figured out what was.
  • After installing macOS High Sierra and the latest versions of MS Office 2016, user-added fonts are not working in previously. This thread is locked.
  • Can’t reinstall MacOs because disk is locked (2nd hand MacBook). Find another computer with High Sierra.
Macos High Sierra This Disk Is Locked

Does your macOS Sierra say: ” Your Startup Disk is Almost Full ” Learn how to fix it before it leads to any data loss. After reading this article you will be able to answer the following questions.

Disk

What I tried:

–Went into disk utility and ran first aid pos the HD.– no errorsand no luck

Macos high sierra this disk is locked macMacos High Sierra This Disk Is Locked

– Disk Utility again and tried to erase the disk and I got an error saying that the disk could not be unmounted.i’m sure that is related to the inability to installing Mac OS Sierra

– I tried to reboot to the old OS and when I tried to choose the startup disk I go the error: “Startup Disk could not gather enough information on the selected disk”

Solution:

How

Shutdown my computer, powered it back on holding the Command-R combination and was brought to the older mac OS utilities menu.Went into disk utility and tried to verify disk and got the following error:“This disk needs to be repaired. Click Repair Disk”I clicked on Repair Diskand after a few minutes I got another error:“Disk Utility can’t repair this disk.Back up as many of the files as possible, reformat the disk and restore your backed-up files.”

Macos High Sierra This Disk Is Locked Iphone

Thankfully I don’t need to backup any files so I chose to erase the disk and reinstall. After erasing the hard drive I had to go into internet recovery and had to install OS X Lion first and then upgrade to mac OS Sierra.