Results 1 to 8 of 8
  1. #1


    Member Since
    Jun 10, 2012
    Location
    Melbourne
    Posts
    46
    Specs:
    MacBook Pro 2011
    Windows partition missing at boot up screen
    Hi, the thread subject pretty much says it. Restarting my Mac does not show the Bootcamp partition like it normally does. It worked fine about a week ago.

    I'm not too technically savvy so I stay away from meddling with the partitions. The only thing I remember doing in the last week was repairing my Mac partition disk by restarting using cmd+r, because I was advised to repair the disk by Onyx. But this would not have anything to do with the Windows partition would it?

    I'm using a 2011 Mac running Mavericks and Windows 7

    Every article I found related to a "missing Windows partition" was when people tried shrinking or re-adjusting the partition size, I've never done this.

    If there's no other choice, I don't mind losing the data on my Windows partition if this can prevent having to re-create and reinstall a Windows partition (though I get the feeling losing data in the Windows partition goes hand in hand with pretty much losing the whole partition itself :l )

    Thanks

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,026
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    Let's find out first if the partition is missing (removed) or just not showing up for some reason. Boot to your recovery partition by using command + r and run Disk Utility. Is the partition visible to Disk Utility?

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,714
    Specs:
    Imac 27" Retina 3.3GHz, 512GB Flash, 16GB memory, OS X.11.4.
    And the Bootcamp partition only shows if you hold down the Option keys to show all available drives/partitions. Booting in the usual manner does not show this.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  4. #4


    Member Since
    Jun 10, 2012
    Location
    Melbourne
    Posts
    46
    Specs:
    MacBook Pro 2011
    Quote Originally Posted by chscag View Post
    Let's find out first if the partition is missing (removed) or just not showing up for some reason. Boot to your recovery partition by using command + r and run Disk Utility. Is the partition visible to Disk Utility?
    It's just not showing up on the boot up screen when I restart while holding the option key. It shows up on disk utility (shows up through recovery partition disk utility as well), I can even view the files on Bootcamp as Read-Only through my Mac partition's file explorer. It hasn't got removed or deleted, it just isn't showing up on the regular boot up screen. It can't be a hard drive crash since my Mac partition works fine. :S

    I used my Windows partition just one week ago, it worked fine.

  5. #5

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,026
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    OK, that means the Windows 7 boot sector was likely zonked or damaged. You should still have your original Windows 7 DVD as you will need it to do a repair. Follow the Microsoft instructions on how to repair your Windows 7. Keep in mind the instructions are for a Windows PC but they will also work for your Mac. Just be careful you don't "repair" your OS X partition.

    Tom's Hardware Instructions to repair Windows 7

  6. #6


    Member Since
    Jun 10, 2012
    Location
    Melbourne
    Posts
    46
    Specs:
    MacBook Pro 2011
    When I boot up through the Windows 7 installation disk, it goes straight into the installation process (and recognises the existing bootcamp partition here as well), the option to repair Windows 7 does not even show up.

    From searching online, I'm apparently supposed to change the startup settings in my laptop's BIOS, and the instructions that follow are for a windows system. How does this work for a Mac?

    Just another question, will wiping my bootcamp partition and doing the whole dual boot installation all over again work fine without problems (this will be the 2nd time I'm reinstalling Windows), or is there anything I should be wary of? I'll probably do that if this gets too complicated.

  7. #7

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Location
    Fort Worth, Texas
    Posts
    48,026
    Specs:
    Late 2013 27" iMac, iPad 3, iPhone 6s+, iPhone 6+, 3 iPods, El Capitan
    When I boot up through the Windows 7 installation disk, it goes straight into the installation process (and recognises the existing bootcamp partition here as well), the option to repair Windows 7 does not even show up.
    It should have offered to do a repair installation during the install process. It will even give you the choice of what to repair. Did you allow the installation to proceed far enough along?

    From searching online, I'm apparently supposed to change the startup settings in my laptop's BIOS, and the instructions that follow are for a windows system. How does this work for a Mac?
    You can ignore that part since a Mac does not use a BIOS.

    Just another question, will wiping my bootcamp partition and doing the whole dual boot installation all over again work fine without problems (this will be the 2nd time I'm reinstalling Windows), or is there anything I should be wary of? I'll probably do that if this gets too complicated.
    It should work OK. Use the Boot Camp assistant to remove your Windows partition and start over. It's a real pain to have to do that several times.

    Are you using your Windows installation to play games or running something that's graphic intensive? If not, you might want to consider running Windows in a VM. VirtualBox from Oracle is free and works well.

  8. #8


    Member Since
    Jun 10, 2012
    Location
    Melbourne
    Posts
    46
    Specs:
    MacBook Pro 2011
    It should have offered to do a repair installation during the install process. It will even give you the choice of what to repair. Did you allow the installation to proceed far enough along?
    It asked me to choose a partition to install Windows on, and showed a "Windows cannot be installed on this partition" message for all the partitions. So there was nothing I could do beyond that point

    Are you using your Windows installation to play games or running something that's graphic intensive? If not, you might want to consider running Windows in a VM. VirtualBox from Oracle is free and works well.
    I mostly use it for games (which have recommended hardware requirements that aren't really met by my Mac) and occasionally Windows-only software (AutoCAD Civil 3D being the most power sapping application of the ones I've used). I'm guessing that rules out VirtualBox? But what exactly can I do with VirtualBox? How does it work?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Option to boot into Windows is missing
    By townsbg in forum Running Windows (or anything else) on your Mac
    Replies: 2
    Last Post: 04-25-2012, 12:06 AM
  2. Windows Partition Won't Boot
    By joshieboy11 in forum Apple Notebooks
    Replies: 0
    Last Post: 07-18-2011, 06:19 PM
  3. Partition external HD to boot Windows
    By MikesMacs in forum Running Windows (or anything else) on your Mac
    Replies: 3
    Last Post: 12-04-2010, 04:50 PM
  4. Missing HDD space after bootcamp erased the Windows partition!!!
    By MacMiranda in forum Running Windows (or anything else) on your Mac
    Replies: 1
    Last Post: 04-08-2010, 02:00 PM
  5. trying to partition and install Windows with boot camp
    By melman911 in forum Running Windows (or anything else) on your Mac
    Replies: 6
    Last Post: 12-18-2009, 09:18 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •