Yesterday I attempted to update my MacBook Pro (I believe it’s a late 2012 model) to High Sierra. When I did, I receive and error message that said “Mac OS Could Not Be Installed On Your Computer. The operation could not be completed. (com.apple.Disk management error 0.) Quit installer to restart your computer and try again.” When I restart my computer, I have to do so in recovery mode, go into Disk Utilities to unlock and remount my hard drive. Thankfully, I can see that my data is still saved on the drive. When I try to boot up from my HD, it does not show up. When I try to reinstall High Sierra, it puts me back into the same loop. I can’t even get to my desktop to delete the install and try again. I’m stuck in a loop of trying to install High Sierra, not working, remounting my hard drive, trying to install High Sierra..... Please help!