OS X won't boot- dreaded "no" sign upon startup

Discussion in 'OS X Yosemite (10.10)' started by Tubamajuba, Jul 9, 2015.

  1. Tubamajuba macrumors 68000

    Joined:
    Jun 8, 2011
    #1
    Everything was running very smoothly for me on my Mac until I decided I wanted to get rid of all previous Office versions (2011 and 2016 preview) before installing the final version of 2016. I used AppCleaner to remove all files related to Office, then I restarted. And that's the last thing OS X did for me. I went into Recovery mode and did the first aid, but it didn't fix anything.

    Lost data isn't really an issue for me. I have a slightly dated Time Machine backup, but I can access my files from Windows so nothing is lost. I would like to get my disk bootable again if possible, however.

    Does anybody have any ideas I could try? Thanks in advance.
     
  2. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #2
    You can reinstall OS X from the recovery partition. That's probably the fastest way to revive your computer.
     
  3. Tubamajuba thread starter macrumors 68000

    Joined:
    Jun 8, 2011
    #3
    Thanks, that's exactly what I'll do.

    Somewhat unrelated question- does all data from previous time machine backups of older installations of OS X remain intact? If I do a fresh install and set up a Time Machine backup, I want to make sure data that doesn't exist in my new installation but does exist in older backups remains intact.
     
  4. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #4
    This won't affect your backup and you probably don't need to do a clean install. Running the installer through Recovery should just replace whatever necessary files you deleted; just don't erase the disk before you install.
     
  5. Tubamajuba thread starter macrumors 68000

    Joined:
    Jun 8, 2011
    #5
    Oh, gotcha. Even better than I thought! Thanks for the info, I'm starting the reinstall now.
     

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