HT204009: Set up a Windows partition on your Mac

Learn about Set up a Windows partition on your Mac
msorenson
Level 1 (0 points)

Q: Windows Partition not showing up

In the step where I am supposed to format the windows partition (In windows installation, selecting a partition to install Windows to), I only see the Hard Drive with 1TB and not the windows partition that has 250GB along with the 750GB Mac part. Help?

Posted on Aug 10, 2015 8:31 PM

Close
msorenson

Q: Windows Partition not showing up

  • All replies
  • Helpful answers

  • by Loner T,Helpful

    Loner T Loner T Aug 10, 2015 8:39 PM in response to msorenson
    Level 7 (23,898 points)
    Safari
    Aug 10, 2015 8:39 PM in response to msorenson

    1. What year/model is your Mac?

    2. Do you see screens similar to the following?

     

    S0003_VistaInstall.png

    S0002_VistaFormat.png

  • by msorenson,

    msorenson msorenson Aug 10, 2015 9:16 PM in response to Loner T
    Level 1 (0 points)
    Aug 10, 2015 9:16 PM in response to Loner T

    Yes that is exactly what I'm seeing, however, only the "Unallocated space" Drive is showing up. And I am on a 2009 iMac

  • by Loner T,Helpful

    Loner T Loner T Aug 11, 2015 12:10 PM in response to msorenson
    Level 7 (23,898 points)
    Safari
    Aug 11, 2015 12:10 PM in response to msorenson

    Do you see a scroll bar with the list of partitions? Please also see Macs with Fusion drive: How to find BOOTCAMP partition in Windows installer - Apple Support even though you do not have a Fusion drive.

  • by msorenson,

    msorenson msorenson Aug 11, 2015 12:17 PM in response to Loner T
    Level 1 (0 points)
    Aug 11, 2015 12:17 PM in response to Loner T

    NO, all I see is one drive, "Drive 0 Unallocated Space", but I know for a fact I partitioned it.

  • by Loner T,

    Loner T Loner T Aug 11, 2015 12:54 PM in response to msorenson
    Level 7 (23,898 points)
    Safari
    Aug 11, 2015 12:54 PM in response to msorenson

    Can you boot into OSX and post  the output of the following Terminal commands?

     

    diskutil list

    diskutil cs list

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

     

    The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.

     

    Do you have a Fusion drive?

  • by msorenson,

    msorenson msorenson Aug 11, 2015 2:13 PM in response to Loner T
    Level 1 (0 points)
    Aug 11, 2015 2:13 PM in response to Loner T

    diskutil list:

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *1.0 TB     disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:                  Apple_HFS Macintosh HD            750.3 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data BOOTCAMP                249.0 GB   disk0s4

    /dev/disk1

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:     FDisk_partition_scheme                        *7.8 GB     disk1

       1:                 DOS_FAT_32 WININSTALL              7.8 GB     disk1s1

    diskutil cs list:

    No CoreStorage logical volume groups found

    sudo gpt -vv -r show /dev/disk0:

    gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168

    gpt show: /dev/disk0: Suspicious MBR at sector 0

    gpt show: /dev/disk0: Pri GPT at sector 1

    gpt show: /dev/disk0: Sec GPT at sector 1953525167

           start        size  index  contents

               0           1         MBR

               1           1         Pri GPT header

               2          32         Pri GPT table

              34           6        

              40      409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

          409640  1465517824      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      1465927464     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      1467197000         440        

      1467197440   486326272      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      1953523712        1423        

      1953525135          32         Sec GPT table

      1953525167           1         Sec GPT header

    sudo fdisk /dev/disk0:

    Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 sectors]

    Signature: 0xAA55

             Starting       Ending

    #: id  cyl  hd sec -  cyl  hd sec [     start -       size]

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

    1: EE 1023 254  63 - 1023 254  63 [         1 -     409639] <Unknown ID>

    2: AF 1023 254  63 - 1023 254  63 [    409640 - 1465517824] HFS+       

    3: AB 1023 254  63 - 1023 254  63 [1465927464 -    1269536] Darwin Boot

    4: 0B 1023 254  63 - 1023 254  63 [1467197440 -  486326272] Win95 FAT-32


  • by msorenson,

    msorenson msorenson Aug 11, 2015 4:30 PM in response to msorenson
    Level 1 (0 points)
    Aug 11, 2015 4:30 PM in response to msorenson

    And it is not a fusion drive

  • by Loner T,

    Loner T Loner T Aug 11, 2015 5:03 PM in response to msorenson
    Level 7 (23,898 points)
    Safari
    Aug 11, 2015 5:03 PM in response to msorenson

    Your partitions look appropriate.

     

    Can you run Disk Utility and Repair Disk? If it gives you any errors then boot in Safe Mode - Try safe mode if your Mac doesn't finish starting up - Apple Support and then boot normally. Try your BC Installation.

     

    If it fails, repeat these steps and run the following two procedures in addition Resetting the System Management Controller (SMC) on your Mac - Apple Support

    How to Reset NVRAM on your Mac - Apple Support.