Unable to boot from disk. I have a Windows 7 installed and cannot login to it. I would like to remove windows and install the orginial or upgraded OS.

I have a MacBook Pro that has Windows 7 installed. I am no longer able to login in to windows. I would like to just start from scratch and rebuild the computer but when I try to boot from the OS install disk I am directed to the boot manger screen. The ony OS avaliable for me to boot to is Windows. I have even tried to use a DBAN disk and usb but nothing seems to work. any suggestions?

If you have inserted the Mac OS X install DVD disc in the DVD drive and used the Option key at boot and all you see on the screen that comes up is the Windows OS disk thenn your DVD drive has failed,
If you have not inserted the OS X install disc in the DVD drive then do that and at Startup/Restart Hold down the Option/Alt key and then select the DVD disc icopn that comes up.

Similar Messages

  • Blinking folder with ? --- unable to boot from disk, have data on hard

    drive that isn't backed up
    I am fairly new to the MAC Os and have gotten this error twice now. Yesterday it was resolved by resetting PRAM - today not so much.
    I am not sure how to proceed - I have not done a most recent backup and was working on new files on my hard drive.
    Any advice?
    I am utilizing an external hard drive for space, so the OS is fairly "empty"
    Hope someone can help!

    here is where I am at -- I didn't think I'd need to say that I've done the first steps, but regardless I have booted from the install disc, reset the PRAM and now I am at a dead end. If I choose continue on the first screen after it boots from the CD, agree to the terms -- I'm assuming there should be an option to select --
    On the screen that is "Select Destination; where do you want to install Mac OS X?" it is blank, the options and continue buttons are greyed out, the only option is to go back --
    am I at a dead end?
    hypothetically speaking, if the system is in need of repair, is there a way that I can have the service techs retrieve the mail / cal / etc data that was not included with my last backup?
    thanks again --

  • I have my iTunes media on an external drive but I would like to know if I keep the library file back to my internal hard drive so it gets backed up by Time Machine.

    I have all my media on an external drive for space. Is there a way I move the library file back to my internal had drive so that Timemachine will keepa  backup of the file. Recently my library file became damaged and I lost all my playlists and playcounts and all that good stuff. Thanks for your help.

    I never lost any media mind you just the library file that tell iTunes where everything lives.
    On this point, you can keep a copy of of the "Itunes Music Library.xml" file, which contains the itunes metadata for your music library (songs & playlists).
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  • I have a mid-2010 27" Quad Core i5 iMac running 10.8.3.  Startup disk recognizes the primary hard drive as a startup volume but will not boot from it.  Have tried zapping PRAM, ran disk utility.  No errors reported  Any thoughts?

    I have a mid-2010 27" Quad Core i5 iMac running 10.8.3.  Startup disk recognizes the primary hard drive as a startup volume but will not boot from it.  Have tried zapping PRAM, ran disk utility.  No errors reported  Any thoughts?

    My bad Eric. The startup preference recognizes the primary as a 10.8.3 startup volume but when u select it the system does not boot. I can only boot from my external backup drive

  • Though the root disk is mirrored, server is unable to boot from alternate disk (mirror disk)

    Hi PPl,
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    You can't boot from systems earlier than that shipped with the computer. For example, early 2008 Mac Pros come with 10.5.1 and can't boot 10.5
    Also you can't boot with a DVD that was shipped with a different model Mac.

  • Can't log in with valid password, can't boot from disk, can't access disk utility, in single user mode can't reset password as appears locked in caps mode with '?' for forward slash, can anyone help?

    Can't log in with valid password, can't boot from disk, can't access disk utility, in single user mode can't reset password as appears locked in caps mode with '?' for forward slash, can anyone help?

    Which keyboard layout you were using? German, French ... I suppose your layout is reset to the default: US and you are unable to find the "?" or "/" ...
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    marek

  • Unable to start from disk while holding C key.

    Hi for some reason I am unable to start boot from disk (Mac OS X install disk) while holding down C key. I've forgot my password and cant log in.
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    I lost my os x disk so i bought one from ebay instead. could this cause me not able to boot from cd?
    Message was edited by: what's going on

    If you are using a grey install disk that is not for your model, that indeed may be why you cannot start the machine with the C key held down.
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    Is this related to the PowerBook you bought on eBay? You don't seem to have much luck there.

  • UCS Unable to boot from SAN

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  • Problem with kernel panic message - Cannot boot from disk or usb

    Hi Everyone,
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    If you get a panic when trying to boot from the installation disc, and the disc is not scratched or dirty, then you have a hardware fault.
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  • Boot Issue BIOS won't boot from Disk

    Ok, heres my issue.  First I was having issue installing Win2k and found I had to disconnect my USB ZIP drive to boot (BIOS Option was disabled)(This is just a note).  After installing WIN2k on a WD300BB I was having no issues until I removed my Win2k CDROM disk.  At that point the bois (seeing the drive) would not boot (Insert a bootable disk error).  To get around this issue I created a bootable nt floppy disk to boot the hard drive.
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  • HP 3500 MicroTower doesn't boot from disk!

    We are facing a very strange issue with HP 3500 , the machine can't boot from disk ! only way to get it to boot is to pxe boot it.
    Whenever it can't find a Pxe server to boot from it failed to boot from disk with an error that "No boot disk detected ... "
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    Hello @abdallahm,
    Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
    I understand you are having issues with your HP Pro 3500 Microtower PC not booting up and are looking for assistance. I am sorry, but to get your issue more exposure, I would suggest posting it in the commercial forums, since this is a commercial product. You can do this at Business PCs - Compaq, Elite, Pro.
    I hope this helps. Thank you for posting on the HP Forums. Have a great day!
    Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
    Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
    Dunidar
    I work on behalf of HP
    Find out a bit more about me by checking out my profile!
    "Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

  • Losing User Accounts on many machines. Cannot boot from Disk. Help!

    As many of you know there is a bug going around where the OS “forgets” what user accounts are on the machine. The only user at login is “Other”. This has happened on 10.6.5 and 10.6.6. In the past I have been able to fix this issue by booting from the Snow Leopard disk, change the root password, login using root and re-add the user accounts back under system pref’s. The issue I’m currently having is that two Mac Pros will not boot from disk, external HD, or into single user mode. None of the key commands work at boot up.
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    gregfl wrote:
    The issue I’m currently having is that two Mac Pros will not boot from disk, external HD, or into single user mode. None of the key commands work at boot up.
    I just had a very similar problem this morning on my iMac. Plain white screen on boot-up. No Apple logo. No booting from my SuperDuper clone, no booting from the DVD, no booting into Startup Manager by holding down the option key, no booting even into Apple Hardware Test. I was getting ready to take it in for service.
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  • HP Pavilion dv6 Notebook PC unable to boot recovery disk

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    Hi:
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  • My mac mini wont boot from disk

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    it started yesterday, and nope, not changed anything apart from the apple update for S.L. a week or two ago, and its stuck at the spinning gear, this has never happened before

  • Folder with question mark + wont boot from disk

    Hi
    I am trying to reinstall a powermac g5 from the disk, using a old hard drive that works.. (formatted in NTFS) (hoping that when selected to boot from disk, mac will then erase and reformat it)this image is presented when i hold down the option key and the disk ejects this other image is presented when i hold down C (folder with question mark blinking) and the disk ejects... also presented if i boot normally.... Could some help be offered please??????
    Powermac G5
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    Yes, you must Format it HFS+ first...
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    Thanks to Pondini, Formatting,  Partitioning, Verifying,  and  Repairing  Disks...
    http://web.me.com/pondini/AppleTips/DU.html

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