carrotsonfire

Q: [Help] Can't boot to windows (8.1) after resizing partition

Hi

 

Need some urgent help here actually!

I am currently using osx el capitan and have a boot camp partition (windows 8.1). Tried to repartition it just now and it was successful but I tried to reboot up to windows but cant reboot?

 

Anyhelp??

 

Thanks!

Posted on Jan 5, 2016 5:59 AM

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Q: [Help] Can't boot to windows (8.1) after resizing partition

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  • by Ilmc57,

    Ilmc57 Ilmc57 Jun 28, 2016 7:12 AM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Jun 28, 2016 7:12 AM in response to Loner T

    No, I couldn't even boot into Windows let alone get into command prompt

  • by Loner T,

    Loner T Loner T Jun 28, 2016 7:27 AM in response to Ilmc57
    Level 7 (23,508 points)
    Safari
    Jun 28, 2016 7:27 AM in response to Ilmc57

    Can you use BC Assistant a build a new Installer and boot from it to Repair?

  • by Ilmc57,

    Ilmc57 Ilmc57 Jun 28, 2016 1:41 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Jun 28, 2016 1:41 PM in response to Loner T

    I can't boot into Windows... How can I get into CommandPrompt?

  • by Loner T,

    Loner T Loner T Jun 28, 2016 1:57 PM in response to Ilmc57
    Level 7 (23,508 points)
    Safari
    Jun 28, 2016 1:57 PM in response to Ilmc57

    If you are booting from the USB installer, try F8, Fn+F8 or Shift+F8.

  • by Ilmc57,

    Ilmc57 Ilmc57 Jun 28, 2016 3:18 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Jun 28, 2016 3:18 PM in response to Loner T

    But isn't that a whole different thing? I'm not booting from a USB drive, this is the Windows that I use

  • by Loner T,

    Loner T Loner T Jun 28, 2016 4:16 PM in response to Ilmc57
    Level 7 (23,508 points)
    Safari
    Jun 28, 2016 4:16 PM in response to Ilmc57

    If your Mac is 2012-2014, BC Assistant will let you create a USB Installer, which can be used to boot from and then repair the internal disk installation. This is useful if there is corruption of NTFS where utilities may not start properly or chkdsk reports issues or diskpart is needed to activate volume or clear the read-only attribute.

  • by Ilmc57,

    Ilmc57 Ilmc57 Jun 28, 2016 7:36 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Jun 28, 2016 7:36 PM in response to Loner T

    OK, so I just create a whole new partition (which was the problem in the first place) to get a new Windows OS for the USB drive?

  • by Loner T,

    Loner T Loner T Jun 28, 2016 7:54 PM in response to Ilmc57
    Level 7 (23,508 points)
    Safari
    Jun 28, 2016 7:54 PM in response to Ilmc57

    No. Please do not. If you run BC Assistant, do you see any check boxes? What year/model is your Mac?

  • by Ilmc57,

    Ilmc57 Ilmc57 Jun 29, 2016 7:05 PM in response to Loner T
    Level 1 (12 points)
    Windows Software
    Jun 29, 2016 7:05 PM in response to Loner T

    Macbook Pro 13" mid-2012

  • by Ilmc57,

    Ilmc57 Ilmc57 Jun 29, 2016 7:11 PM in response to Ilmc57
    Level 1 (12 points)
    Windows Software
    Jun 29, 2016 7:11 PM in response to Ilmc57

    You know what, I think I'll just reset the Windows, and start fresh.

  • by Loner T,

    Loner T Loner T Jun 29, 2016 7:15 PM in response to Ilmc57
    Level 7 (23,508 points)
    Safari
    Jun 29, 2016 7:15 PM in response to Ilmc57

    If you can afford to do that, it is a much simpler solution.

  • by JunCorp,

    JunCorp JunCorp Jul 13, 2016 11:13 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Jul 13, 2016 11:13 AM in response to Loner T

    Hi Loner T, I'm on the same problem, I can not start Windows 10 on my MacBook Air.

    In short, reduced the Macintosh partition 90GB to 80GB HD and unable to allocate space 10GB free at (BootCamp) Windows, I returned to assign the Macintosh HD 90GB running again

    I try to follow your footsteps, but no where to create the MBR and partition to assign

    I'm too worried because I have some software licenses on the Windows partition and do not want to lose.

    I'll thank me much help.

     

    ---------------------------

    Last login: Wed Jul 13 10:50:25 on ttys000

    MacBook-Air-de-Junior:~ Sandoval$ sudo gdisk /dev/disk0

    Password:

    GPT fdisk (gdisk) version 1.0.1

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Partition table scan:

      MBR: hybrid

      BSD: not present

      APM: not present

      GPT: present

    Found valid GPT with hybrid MBR; using GPT.

    Command (? for help):

    ---------------------------

    Disk /dev/disk0: 236978176 sectors, 113.0 GiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): 9E9E17DD-EC38-47B2-B5CD-830A29599B17

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 236978142

    Partitions will be aligned on 8-sector boundaries

    Total free space is 2021 sectors (1010.5 KiB)

     

    Number  Start (sector)    End (sector)  Size       Code  Name

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640       173011167   82.3 GiB    AF05  Macintosh HD

       3       173011168       174280703   619.9 MiB   AB00  Recovery HD

       4       174280704       236976127   29.9 GiB    0700  BOOTCAMP

     

    Command (? for help):

  • by Loner T,

    Loner T Loner T Jul 13, 2016 11:29 AM in response to JunCorp
    Level 7 (23,508 points)
    Safari
    Jul 13, 2016 11:29 AM in response to JunCorp

    Can you start a new discussion in Boot Camp with details?

  • by adenlove07,

    adenlove07 adenlove07 Jul 22, 2016 7:37 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Jul 22, 2016 7:37 AM in response to Loner T

    Hi i did everything you showed... but in the end after booting my Windows...

     

    it says "Non-system disk, press any key to reboot"

     

     

    please i badly need help

  • by Loner T,

    Loner T Loner T Jul 22, 2016 7:56 AM in response to adenlove07
    Level 7 (23,508 points)
    Safari
    Jul 22, 2016 7:56 AM in response to adenlove07

    Can you start a new discussion and post the output of

     

    diskutil list

    diskutil cs list

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

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