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  1. #1
    Question Mac OS X start progress bar stuck at 100%
    Hi everyone, I have a Mac OS X with high sierra I think. I have also bootcamp with windows, this partition start frawless but the OSX remain stuck at 100% of the progress bar. Now I know that I have this iMac full , with very little space remained of memory. The problem is: I have a ton of work in the windows partition, and I want to resolve this problem without touching anything for the windows partition. What I can do?

    Ps. Sorry for the bad English, iím Italian

  2. #2
    Mac OS X start progress bar stuck at 100%
    ferrarr's Avatar
    Member Since
    May 21, 2012
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    Pawtucket, RI, US
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    6,396
    Your Mac's Specs
    L2014 Mac mini macOS 14, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
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    Have you held option (maybe option+R) down when starting up?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  3. #3
    No, what it does? Btw my start partition is for windows, I start the Mac OS X part with pressing alt. Can I do your command with this?

  4. #4
    Quote Originally Posted by ferrarr View Post
    Have you held option (maybe option+R) down when starting up?
    I’ve tried it but nothing happened. Please help me I need this for work and i’m Starting panicking.

    EDIT: now the Mac don’t ask me which account I want, and it boots with a gray background, no finder, no dock. Only safari opened and nothing more. I can’t access anywhere in this mode , even inside the preferences.
    Last edited by ShadoGiow; 08-14-2019 at 07:45 AM.

  5. #5
    Mac OS X start progress bar stuck at 100%
    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Keller, Texas
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    58,235
    Your Mac's Specs
    2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Mojave
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    Your problem is a full hard drive. You painted yourself into a corner and the only way out now is to start cleaning out the hard drive to make room so the system can boot. To make matters worse, you were booting straight to Windows using boot camp.

    If you have a backup of both macOS and Windows, you can reinstall macOS and then Windows. But again, you will need to allow at least 10-15% of the hard drive as free space.

    No backup? Then you're probably looking at the loss of data.

  6. #6
    Quote Originally Posted by chscag View Post
    Your problem is a full hard drive. You painted yourself into a corner and the only way out now is to start cleaning out the hard drive to make room so the system can boot. To make matters worse, you were booting straight to Windows using boot camp.

    If you have a backup of both macOS and Windows, you can reinstall macOS and then Windows. But again, you will need to allow at least 10-15% of the hard drive as free space.

    No backup? Then you're probably looking at the loss of data.
    I donít mind the lost of data on the Mac partition. I only want to restart again my Mac OS X part normali (even empity) without touching the windows partition..

  7. #7
    Mac OS X start progress bar stuck at 100%
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
    Location
    Winchester, VA
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    6,170
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    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
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    Do you have anything you can boot from externally? A USB drive with the OS installed? A clone backup? You can boot from that and then clean off some space on the drive from there.
    Jake

  8. #8
    I have a usb, I must simply put the installation of High Sierra on the usb and then what?

  9. #9
    Mac OS X start progress bar stuck at 100%
    MacInWin's Avatar
    Member Since
    Jan 01, 2009
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    Winchester, VA
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    Your Mac's Specs
    MBP 15" Mid 2015, iPhone XS, an iMac, plus ATVs, AWatch, MacMini
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    No. Because your Mac won't boot, what you need is a USB with the operating system ALREADY installed. At this point because your Mac won't boot, you cannot install the OS to the USB drive.

    But if you do have a bootable USB drive, attach it to the Mac and then power up holding down the Option key and select the USB drive when it appears. The boot will be very slow, but at the end you should be able to use Finder to go to the Mac drive partition with the High Sierra data and delete stuff until you have sufficient space to allow it to boot.
    Jake

  10. #10
    But my Mac partition now start but with only safari functional. No wallpaper, no finder, no dock, only safari opened two icon top left: flag of my language and wifi signal. The top status bar allow me only to quit safari. Once done that I can’t click anything. I’ve tried to download a file for watch it on the finder, but I can’t even download a file because the partition doesn’t allow that. Wtf I have done

  11. #11
    Mac OS X start progress bar stuck at 100%
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    6,396
    Your Mac's Specs
    L2014 Mac mini macOS 14, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Rep Power
    13
    You are only booting into the Recovery partition, or Internet Recovery. You can try to run Disk Utility > First Aid.

    Start here, About macOS Recovery - Apple Support, or here, How to reinstall macOS from macOS Recovery - Apple Support. If the drive is still functioning, you should be able to reinstall macOS without erasing any data, but getting into Boot Camp/winOS may be an issue after the reinstall.

    What are the specs/type of Mac you are using?
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  12. #12
    Quote Originally Posted by ferrarr View Post
    You are only booting into the Recovery partition, or Internet Recovery. You can try to run Disk Utility > First Aid.

    Start here, About macOS Recovery - Apple Support, or here, How to reinstall macOS from macOS Recovery - Apple Support. If the drive is still functioning, you should be able to reinstall macOS without erasing any data, but getting into Boot Camp/winOS may be an issue after the reinstall.

    What are the specs/type of Mac you are using?
    I don’t know, it’s a iMac that I don’t use so much. If this can damage the windows partition I can’t do that...
    By the way I can’t go to utility disk, in that mode I can’t do anything expect quit safari and then force shut down

  13. #13
    Mac OS X start progress bar stuck at 100%
    ferrarr's Avatar
    Member Since
    May 21, 2012
    Location
    Pawtucket, RI, US
    Posts
    6,396
    Your Mac's Specs
    L2014 Mac mini macOS 14, iPhone 8+ iOS 12, 12.9" iPad Pro 1 iOS 12, Pencil 1
    Rep Power
    13
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  14. #14
    Quote Originally Posted by ferrarr View Post
    Tried that, now the progress bar has returned and stay slow and I think stuck at 100% when it reach that.
    Last edited by ShadoGiow; 08-15-2019 at 05:03 AM.

  15. #15
    Quote Originally Posted by MacInWin View Post
    No. Because your Mac won't boot, what you need is a USB with the operating system ALREADY installed. At this point because your Mac won't boot, you cannot install the OS to the USB drive.

    But if you do have a bootable USB drive, attach it to the Mac and then power up holding down the Option key and select the USB drive when it appears. The boot will be very slow, but at the end you should be able to use Finder to go to the Mac drive partition with the High Sierra data and delete stuff until you have sufficient space to allow it to boot.
    Can I explore the Mac partition on the windows partition for deleting stuff and free space? Isn’t that a possible solutions?

    I’m sure the problem is the full hard drive, I need to go there and delete something!

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