Waareenwillyisiseenweg
Level 1 (8 points)
Windows Software

Q: Can't delete windows partition

Hello everybody,

 

I installed Windows 8 on a BOOTCAMp partition a while ago and now I want to remove it. The only problem is that i cant. I cant click on the "Remove or install" option in Bootcamp itself(greyed out)  and beside this, I cant remove it via the Disk utility. In the disk utility it says this:

Screen Shot 2016-09-02 at 15.05.56.png

and whenever I try to continue it says this:

Screen Shot 2016-09-02 at 15.05.22.png
Also, it is very strange, but i have 3 partitions instead of 2. One is the macintosh partition, one for bootcamp and then another one with the name Untitled (134Mb) but I cant see this partition in the side bar from diskutility.

So I can see the untitled partition in the partition window:

Screen Shot 2016-09-02 at 15.09.50.png

but not in the sidebar:

Screen Shot 2016-09-02 at 15.10.14.png
I hope someone can help me because im out of options,

thanks in advance!

MacBook Pro, OS X El Capitan (10.11.5), early 2011 model

Posted on Sep 2, 2016 6:14 AM

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Waareenwillyisiseenweg

Q: Can't delete windows partition

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  • Helpful answers

  • by Loner T,

    Loner T Loner T Sep 2, 2016 10:16 AM in response to Waareenwillyisiseenweg
    Level 7 (23,543 points)
    Safari
    Sep 2, 2016 10:16 AM in response to Waareenwillyisiseenweg

    Do you have a 3TB disk or a Fusion drive? From OSX Terminal, please post the output of

     

    diskutil list

    diskutil cs list

  • by Waareenwillyisiseenweg,

    Waareenwillyisiseenweg Waareenwillyisiseenweg Sep 7, 2016 6:34 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Sep 7, 2016 6:34 AM in response to Loner T

    first command:

    /dev/disk0 (internal, physical):

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *320.1 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:          Apple_CoreStorage Macintosh HD            264.9 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:         Microsoft Reserved                         134.2 MB   disk0s4

       5:                  Apple_HFS BOOTCAMP                54.1 GB    disk0s5

    /dev/disk1 (internal, virtual):

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                  Apple_HFS Macintosh HD           +264.5 GB   disk1

                                     Logical Volume on disk0s2

                                     BAB45B41-8328-423D-A83C-1189EF90F9B8

                                     Unencrypted


    second command:

    CoreStorage logical volume groups (1 found)

    |

    +-- Logical Volume Group CE0DA4C9-E538-4166-8EAC-3A7D4DAD597B

        =========================================================

        Name:         Macintosh HD

        Status:       Online

        Size:         264863174656 B (264.9 GB)

        Free Space:   18907136 B (18.9 MB)

        |

        +-< Physical Volume 14768867-6215-4259-B5F2-6CF9A499EE46

        |   ----------------------------------------------------

        |   Index:    0

        |   Disk:     disk0s2

        |   Status:   Online

        |   Size:     264863174656 B (264.9 GB)

        |

        +-> Logical Volume Family 41DCA0F9-E5B7-4ABC-86B0-9554F2CA0239

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

            Encryption Type:         None

            |

            +-> Logical Volume BAB45B41-8328-423D-A83C-1189EF90F9B8

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

                Disk:                  disk1

                Status:                Online

                Size (Total):          264491945984 B (264.5 GB)

                Revertible:            Yes (no decryption required)

                LV Name:               Macintosh HD

                Volume Name:           Macintosh HD

                Content Hint:          Apple_HFS

  • by Loner T,

    Loner T Loner T Sep 7, 2016 8:38 AM in response to Waareenwillyisiseenweg
    Level 7 (23,543 points)
    Safari
    Sep 7, 2016 8:38 AM in response to Waareenwillyisiseenweg

    Waareenwillyisiseenweg wrote:

     

     

       5:                  Apple_HFS BOOTCAMP                54.1 GB    disk0s5

    If you use DU to erase the Bootcamp partition, it is formatted as HFS, which BC Assistant will not touch. In OSX Terminal, please run the following commands and then re-try removing the partition using BC Assistant.

     

    The following commands convert disk0s4 to HFS+, merge disk0s4 and disk0s5 into HFS+, and then convert the resulting disk0s4 back to FAT, because BCA wants FAT32 to remove and merge. If you see any error messages, please stop and post back. Copy (Command+C) all screen output and Paste (Command+V) as a reply.

     

    diskutil eraseVolume jhfs+ BC1 disk0s4

    diskutil mergePartitions jhfs+ BCMP disk0s4 disk0s5

    diskutil eraseVolume fat32 BOOTCAMP disk0s4

  • by Waareenwillyisiseenweg,

    Waareenwillyisiseenweg Waareenwillyisiseenweg Sep 8, 2016 8:59 AM in response to Loner T
    Level 1 (8 points)
    Windows Software
    Sep 8, 2016 8:59 AM in response to Loner T

    Thanks LonerT, it totally worked!

     

    Finally had the option to remove it via BCA

  • by Loner T,

    Loner T Loner T Sep 8, 2016 9:46 AM in response to Waareenwillyisiseenweg
    Level 7 (23,543 points)
    Safari
    Sep 8, 2016 9:46 AM in response to Waareenwillyisiseenweg

    Excellent. Back up OSX, before you attempt the next installation of Windows.