Error setting up Boot Camp: Your disk could not be partitioned

I am trying to setup Boot Camp on my 16-inch MacBook Pro. Every time I run the Boot Camp Assistant I get the error, “You disk could not be partitioned.”


I have run first aid on the disk via Disk Utility, and turned off Time Machine per suggestions I found. I still get the error.


MacBook Pro with Touch Bar

Posted on Oct 14, 2020 1:15 PM

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Question marked as Top-ranking reply

Posted on Oct 20, 2020 11:37 AM

You can delete snapshots individually using


diskutil apfs deletesnapshot 
Usage:  diskutil apfs deleteSnapshot|deleteVolumeSnapshot <apfsVolumeDisk>
        -uuid <snapshotUUID> | -xid <snapshotXIDNumber> | -name <snapshotName>
        where <apfsVolumeDisk> = APFS Volume DiskIdentifier
              <snapshotUUID> = an APFS Snapshot UUID string (preferred)
              <snapshotXIDNumber> = an APFS Snapshot ID Number in decimal
              <snapshotName> = an APFS Snapshot Name (not mountpoint)
Remove the specified APFS Snapshot from the specified APFS Volume. The ability
to restore the state of the APFS Volume to that point in its evolution is lost.
The APFS Volume must be unlocked and mounted; the Snapshot must not be mounted.
Ownership of the affected disks is required.
Example:  diskutil apfs deleteSnapshot disk5s1 -uuid <UUID>
          diskutil apfs deleteSnapshot disk5s1 -name MySnap1

23 replies
Question marked as Top-ranking reply

Oct 20, 2020 11:37 AM in response to daguerratype

You can delete snapshots individually using


diskutil apfs deletesnapshot 
Usage:  diskutil apfs deleteSnapshot|deleteVolumeSnapshot <apfsVolumeDisk>
        -uuid <snapshotUUID> | -xid <snapshotXIDNumber> | -name <snapshotName>
        where <apfsVolumeDisk> = APFS Volume DiskIdentifier
              <snapshotUUID> = an APFS Snapshot UUID string (preferred)
              <snapshotXIDNumber> = an APFS Snapshot ID Number in decimal
              <snapshotName> = an APFS Snapshot Name (not mountpoint)
Remove the specified APFS Snapshot from the specified APFS Volume. The ability
to restore the state of the APFS Volume to that point in its evolution is lost.
The APFS Volume must be unlocked and mounted; the Snapshot must not be mounted.
Ownership of the affected disks is required.
Example:  diskutil apfs deleteSnapshot disk5s1 -uuid <UUID>
          diskutil apfs deleteSnapshot disk5s1 -name MySnap1

Oct 15, 2020 5:58 PM in response to Loner T

Running First Aid on “Macintosh HD” (disk1s1)


Verifying the startup volume will cause this computer to stop responding.


Verifying file system.

Volume could not be unmounted.

Using live mode.

Performing fsck_apfs -n -l -x /dev/rdisk1s1

Checking the container superblock.

Checking the EFI jumpstart record.

Checking the space manager.

Checking the space manager free queue trees.

Checking the object map.

Checking volume.

Checking the APFS volume superblock.

The volume Macintosh HD was formatted by asr (1412.120.2) and last modified by apfs_kext (1412.141.1).

Checking the object map.

Checking the snapshot metadata tree.

Checking the snapshot metadata.

Checking snapshot 1 of 10 (com.apple.TimeMachine.2020-10-14-163353.local)

Checking snapshot 2 of 10 (com.apple.TimeMachine.2020-10-14-195344.local)

Checking snapshot 3 of 10 (com.apple.TimeMachine.2020-10-14-212952.local)

Checking snapshot 4 of 10 (com.apple.TimeMachine.2020-10-15-073842.local)

Checking snapshot 5 of 10 (com.apple.TimeMachine.2020-10-15-102514.local)

Checking snapshot 6 of 10 (com.apple.TimeMachine.2020-10-15-120252.local)

Checking snapshot 7 of 10 (com.apple.TimeMachine.2020-10-15-130219.local)

Checking snapshot 8 of 10 (com.apple.TimeMachine.2020-10-15-140411.local)

Checking snapshot 9 of 10 (com.apple.TimeMachine.2020-10-15-150351.local)

Checking snapshot 10 of 10 (com.apple.TimeMachine.2020-10-15-160625.local)

Checking the extent ref tree.

Checking the fsroot tree.

Verifying allocated space.

The volume /dev/rdisk1s1 appears to be OK.

File system check exit code is 0.

Restoring the original state found as mounted.


Operation successful.


Oct 20, 2020 11:51 AM in response to Loner T

I removed the snapshots and received the same error when running Boot Camp Assistant. I ran First Aid again and got the following results:


Running First Aid on “Macintosh HD” (disk1s1)


Verifying the startup volume will cause this computer to stop responding.


Verifying file system.

Volume could not be unmounted.

Using live mode.

Performing fsck_apfs -n -l -x /dev/rdisk1s1

Checking the container superblock.

Checking the EFI jumpstart record.

Checking the space manager.

Checking the space manager free queue trees.

Checking the object map.

Checking volume.

Checking the APFS volume superblock.

The volume Macintosh HD was formatted by asr (1412.120.2) and last modified by apfs_kext (1412.141.1).

Checking the object map.

Checking the snapshot metadata tree.

Checking the snapshot metadata.

Checking the extent ref tree.

Checking the fsroot tree.

Verifying allocated space.

The volume /dev/rdisk1s1 appears to be OK.

File system check exit code is 0.

Restoring the original state found as mounted.


Operation successful.


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Error setting up Boot Camp: Your disk could not be partitioned

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