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My BOOTCAMP disk shows up twice... removing it in BCA no longer works

Now I'm not sure why or when this happened... but as I was trying to delete my bootcamp I realized that for some reason it was split into two parts-- the normal Windows 10 NTFS part, and then a partition running MS-DOS FAT32 that's about 800 MB big (2 MB used). This mysterious, second disk appears to be totally empty when inspected in finder, and mounts as /Volumes/BOOTCAMP 1. Because of this, BCA refuses to start, throwing the generic "The startup disk cannot be partitioned or restored to a single partition" error.


Here is a printout of diskutil list:

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_APFS Container disk1 452.0 GB disk0s2

3: Microsoft Basic Data BOOTCAMP 47.2 GB disk0s3

4: Microsoft Basic Data BOOTCAMP 892.3 MB disk0s4


/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +452.0 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh 420.9 GB disk1s1

2: APFS Volume Preboot 20.3 MB disk1s2

3: APFS Volume Recovery 509.8 MB disk1s3

4: APFS Volume VM 1.1 GB disk1s4

I want to completely remove my bootcamp since I now have parallels. The Disk Utility application has greyed out the erase buttons for both bootcamp devices. I tried going into Internet Recovery mode to remove to partitions via the gpt command, but when I booted up into IR mode I got error code -2100F. Anyone have an idea to what's going on? Or perhaps a good way to tackle removing these space-wasting disks? I don't care about any of the data on the bootcamp. Any help would be appreciated!

Here is a screenshot of my computer's devices:

User uploaded file

And here is the second BOOTCAMP in disk utility...


User uploaded file

MacBook Pro with Retina display, macOS High Sierra (10.13.3), Running Windows 10 on Bootcamp

Posted on Mar 8, 2018 7:21 PM

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Posted on Mar 8, 2018 7:41 PM

The second 800MB disk is Windows Recovery. Start Applications -> Utilities -> Terminal and run the following commands. If you see any errors, stop and post the output of the Terminal session.


diskutil eraseVolume jhfs+ BC1 disk0s3

diskutil eraseVolume jhfs+ BC2 disk0s4

diskutil mergePartitions jhfs+ BCMP disk0s3 disk0s4

diskutil list


If you see only disk0s3, then


diskutil eraseVolume fat32 BOOTCAMP disk0s3


and run BC Assistant and click on Remove/Restore.

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3 replies
Question marked as Best reply

Mar 8, 2018 7:41 PM in response to anderdude

The second 800MB disk is Windows Recovery. Start Applications -> Utilities -> Terminal and run the following commands. If you see any errors, stop and post the output of the Terminal session.


diskutil eraseVolume jhfs+ BC1 disk0s3

diskutil eraseVolume jhfs+ BC2 disk0s4

diskutil mergePartitions jhfs+ BCMP disk0s3 disk0s4

diskutil list


If you see only disk0s3, then


diskutil eraseVolume fat32 BOOTCAMP disk0s3


and run BC Assistant and click on Remove/Restore.

My BOOTCAMP disk shows up twice... removing it in BCA no longer works

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