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How can I remove this partition?

I recently tried installing windows through Boot Camp but gave up a little ways through after seeing how much space it was going to take up. I never got to finish setting up windows but I did get it to the point where it asked me which drive I wanted it on . When I restarted my computer I went to bootcamp to remove the windows partition and got the message:

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It seems 2 new partitions were made along with the new windows one: Windows Recovery (472 MB), Windows Reserved (16.8 MB)

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I have tried:

1. Going to disk utility and simply removing the second partition. The "-" is grayed out when I select the new partition and there is a message underneath the partition information saying "You can not remove this volume because the previous volume can not be resized."

2. Erasing the volume in recovery mode. I erased it and reformatted it as Mac OS Extended (Journaled) but still couldn't remove it through disk utility after restarting.


How can I go back to having one single volume? I am open to any options (including resetting everything on my macbook to factory settings if it will return it to a single volume). I do have Time Machine setup with recent backups of my drive. Thank you!!


[I am running macOS Sierrra 10.12.2 Beta on a 13 inch Macbook Pro (Retina mid-2014 model), 3GHz Intel Core i7, 256GB Flash Storage, 16GB of memory (just in case any of this helps)]

MacBook Pro with Retina display, OS X Yosemite (10.10.5)

Posted on Dec 12, 2016 12:22 PM

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56 replies
Question marked as Helpful

Dec 12, 2016 1:27 PM in response to SpaghettiEddy

Please run the following command in OSX Terminal...


diskutil eraseVolume jhfs+ BC1 disk0s4

diskutil eraseVolume jhfs+ BC2 disk0s5

diskutil eraseVolume jhfs+ BC3 disk0s6

diskutil eraseVolume jhfs+ BC4 disk0s7

diskutil eraseVolume jhfs+ BC5 disk0s8

diskutil mergePartitions jhfs+ BCMP disk0s4 disk0s8

diskutil eraseVolume fat32 BOOTCAMP disk0s4


Verify that you have only entry after Recovery HD using diskutil list. After verification, run BC Assistant and try to Restore to a single 'user-visible' partition. You should end up with EFI, OSX and Recovery HD.

Dec 12, 2016 1:24 PM in response to Loner T

I ran all of the commands in order. The 5th and 6th commands ("diskutil eraseVolume jhfs+ BC5 disk0s8" and "diskutil mergePartitions jhfs+ BCMP disk0s4 disk0s8") didn't seem to work because disk0s8 couldn't be found.

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Not entirely sure what it means to verify that I have only entry after Recovery HD (sorry, not very tech savvy). I did run diskutil list and this was the output:

User uploaded file

When I opened up BC Assistant, I got the same message as I did in the first post: "The startup disk cannot be partitioned or restored to a single partition."

Nov 20, 2017 6:13 AM in response to Loner T

Hi, excuse me to intrude, i was wondering if this would work for me. I have windows installed in my mac, and wanted to remove it, but i keep getting this message:

User uploaded file

When i looked it up i have a partition in my disk that's named disk0s4 and it's sized exactly 471.9mb. The "-"option is greyed out on disk utility and i just want the whole thing to be gone.

How can I remove this partition?

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