Failed start up - 100% need erase hard drive?

I have been taken through safe start up (shift key) and reboot(?)/disk utility start up (alt key) over the phone with Apple staff.
On second attempt, safe start still didn't work.
On first attempt, disk utility said I needed to erase the hard drive and re-install (I have a time machine back up).
On second attempt, disk utility said my hard drive was fine. I tried restarting after this , but the original problem re-occured : an endless loading circle, never leaving the gray screen and loading symbol on start up.
I am happy to take it in to a genius bar , but don't need to if I 100% need to delete and re-install, as I can do this.
Have I missed something to check? Do i need a genuis bar?
Thanks!

Startup - Gray, Blue or White screen at boot, w/spinner/progress bar
Startup - Gray Screen
Startup Issues - Resolve
Startup Issues - Resolve (2)

Similar Messages

  • Failed start up - 100% need erase drive ?

    I have been taken through safe start up (shift key) and reboot(?)/disk utility start up (alt key) over the phone with Apple staff.
    On second attempt, safe start still didn't work.
    On first attempt, disk utility said I needed to erase the hard drive and re-install (I have a time machine back up).
    On second attempt, disk utility said my hard drive was fine. I tried restarting after this , but the original problem re-occured : an endless loading circle, never leaving the gray screen and loading symbol on start up.
    I am happy to take it in to a genius bar , but don't need to if I 100% need to delete and re-install, as I can do this.
    Have I missed something to check? Do i need a genuis bar?
    Thanks!

    There is probably something pretty messed up on the hard drive, the operating system files, giving such erratic behavior.  If you followed the instructions of the Apple on-line support techs and got to the point of erase/install, did you try a boot from the DVD/CD and then use Disk Utility to Repair Disk?  That cannot hurt things.  And it might just cleanup the file system glitch.  If not, then the erase and install and restore of applications from the TM backup should help.

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    I have an 8 year old eMac G3. It will not start up. I need to erase it before putting it in recycling. Apple refuses to open the case and warns me that I will be shocked if I even try. They say no way to erase hard drive. They say use a hammer. Any ideas?

    Hi, no eMacs had G3s, only G4s. Is it maybe an iMac G3?
    If you don't know the model, find the Serial# & use it on one of these sites, but don't post the Serial# here...
    http://www.chipmunk.nl/klantenservice/applemodel.html
    http://www.appleserialnumberinfo.com/Desktop/index.php
    How to find the serial number of your Apple hardware product...
    http://support.apple.com/kb/HT1349
    http://www.ifixit.com/Device/eMac

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    Both of my computers crashed nearly simultanesously due to mal-ware, had to erase hard drives to start over, did not have chance to de-activate either Acrobat or Creative Cloud before they crashed.  I need you to retroactively deactivate these two previous computers (one Dell desktop, another a Dell laptop from my university, the University Of Missouri_KC), so that I can re-install on my laptop (which has been repaired by UMKC), and the other on my new private desktop (which replaces my previous desktop, which cannot be salvaged).  I have the serial numbers of my two products, if Adobe could request them
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    Hi Marc,
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    Yes the original Install Discs can be replaced for a nominal fee. Call AppleCare, you will need a credit card and the serial number of the machine. You can use the AppleCare Contact Info for the phone number on your part of the planet.

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    What is the best way to recycle old 2010 MacBook?  Also, it is completely dead and I cannot erase hard drive.

    Depending on where you are located, country, region, etc, you may have options should
    you wish to have it professionally restored or repaired to function properly again...
    Even an Apple Store with Genius bar could, in several locations, give the product a look
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    However if you only wanted someone to extract the hard disk drive and attach it to
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    that is something that could be done at an Apple Authorized service provider; as
    some of them may even have a section of resale products such as this adapter kit.
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    so it can be used to run the hard drive's electronics. This is not intended for permanent
    use, but works like a set of patch cables to access the bare drive without an enclosure.
    https://www.ifixit.com/Store/Mac/Universal-Drive-Adapter/IF107-108-1
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    http://eshop.macsales.com/item/NewerTech/U3NVSPATA/
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    found to be of interest requiring other work or parts, they will also contact you, again before
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    the eastern US, and worth inquiring of even if you are overseas. wegenermedia.com.
    While I have no connection with any of these products or service suggestions, they do have
    some variety of good reputation (ifixit.com has DIY repair guides; macsales has parts, etc.)
    in standing, among many Mac users across a section of the planet...
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    edited

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    I am trying to erase the hard drive of eMac OS 10.3.9. Tried Command + R keys while rebooting but disk utility wont let me erase. The erase button is not active/greyed out. Is there another way to erase hard drive completely? I dont need to reinstall because I am trying to discard eMac (15 years+ old). I do not have any of the installer CDs since I threw them out.

    You could perhaps try a web search for an old PowerPC release (dban-2.0.0_powerpc.iso) of a free disk wiping utility called DBAN. A CD burned from the iso file should allow a PowerPC Mac to start up (hold down the C key) from a small (Linux) system. It would then be possible to test if and how the utility works on your eMac.
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