Bootcamp "The startup disk cannot be partitioned or restored to a single partition" error.

Hi Loner,

Thank you so much for your quick reply. I thought you would come back to me at least one day later. However you replied to me after 16 mins!!! Work perfectly and save me lots of time. You are great!!! Have a good day!

Hey, hate to ask you for help but I've got pretty much the same error... I tried something you posted earlier and it didn't seem to work 😟 Think you could lend a hand?

Apple should really pay guys like you to help people... you're super stars xD

EDIT: bit of a backstory on the problem.... Winblows (I hate Windows 10) Tried to update against my will as it always seems to do these days... This time the update even though I didn't interrupt it has corrupted the boot so I need to get rid of it.

Hi Loner,

How about mine ..? thanks

Junmins-MacBook-Pro:~ junmin$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *250.1 GB
disk0

1: EFI EFI 209.7 MB
disk0s1

2: Microsoft Basic Data BOOTCAMP 187.4 GB
disk0s2

3: Apple_APFS Container disk1 62.3 GB disk0s5

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +62.3 GB disk1

Physical Store disk0s5

1: APFS Volume OS X 18.8 GB disk1s1

2: APFS Volume Preboot 20.6 MB disk1s2

3: APFS Volume Recovery 507.2 MB
disk1s3

4: APFS Volume VM 1.1 GB disk1s4

/dev/disk2 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *8.0 GB disk2

1: DOS_FAT_32 WININSTALL 8.0 GB disk2s1

Junmins-MacBook-Pro:~ junmin$ diskutil cs list

No CoreStorage logical volume groups found

Hi Loner T

I am facing the same problem. Could you please teach me what I need to do?

Last login: Sun Feb 4 10:22:15 on ttys000

urikus-iMac:~ luyu$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 498.4 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Reserved 16.8 MB disk0s4

5: Microsoft Basic Data BOOTCAMP 500.0 GB disk0s5

6: Windows Recovery 843.1 MB disk0s6

/dev/disk1 (external, physical):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme *1.0 TB disk1

1: Apple_partition_map 32.3 KB disk1s1

2: Apple_HFS Mac 500.1 GB disk1s3

3: Windows_NTFS LuYu 500.0 GB disk1s4

urikus-iMac:~ luyu$ diskutil cs list

No CoreStorage logical volume groups found

urikus-iMac:~ luyu$

Hey LonerT, i'm facing a similar problem, just upgraded to High Sierra and deleted the bootcamp partition using Bootcamp assistant, and when trying to re-install Windows the BCAssitant keep sending me this message " The startup disk cannot be partitioned..."
this is the list:

Last login: Sun Feb 4 21:04:22 on ttys000

MBP-de-Thiago:~ Thiagoschin$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *750.2 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 749.3 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Apple_Boot 650.0 MB disk0s4

MBP-de-Thiago:~ Thiagoschin$

MBP-de-Thiago:~ Thiagoschin$ diskutil cs list

Also my Time machine drive isn't working anymore, it won't read my HD and asks me to set up as a new one, but my files are all there.

Could you see if you can help me in some way? Thank you!

here's the list after reboot:

Last login: Sun Feb 4 22:16:38 on ttys000

MBP-de-Thiago:~ Thiagoschin$ diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *750.2 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 749.3 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

MBP-de-Thiago:~ Thiagoschin$

MBP-de-Thiago:~ Thiagoschin$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=750156374016; sectorsize=512; blocks=1465149168

gpt show: /dev/disk0: PMBR at sector 0

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

gpt show: /dev/disk0: Sec GPT at sector 1465149167

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

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

409640 1463469952 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

1463879592 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

1465149128 7

1465149135 32 Sec GPT table

1465149167 1 Sec GPT header

Also not getting the message from BCAssistant.

Hello Loner T

I am having a similar problem with my Macbook.

I am trying to create an installation file for Windows 10 for my new PC I have built. I am trying to use Boot Camp to allow me to prepare the USB.

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB
disk0

1: EFI EFI 209.7 MB
disk0s1

2: Apple_HFS Macintosh HD 120.5 GB
disk0s2

3: Apple_Boot Recovery HD 650.0 MB
disk0s3

/dev/disk1 (disk image):

#: TYPE NAME SIZE IDENTIFIER

0: CCCOMA_X64FRE_EN-US... +4.7 GB disk1

When I typed in the command diskutil list this came up. When I typed diskutil cs list nothing came up.

If you could help me figure out why I am getting the "The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows." message, that would be great!

Dear Loner T, i would be more than grateful if you can help me with the Boot camp. Please help. Terminal is listing the following:

diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *250.1 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 70.0 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Reserved 16.8 MB disk0s4

5: Microsoft Basic Data BOOTCAMP 178.6 GB disk0s5

6: Windows Recovery 492.8 MB disk0s6

diskutil cs list

No CoreStorage logical volume groups found

Please help me. I tried to install windows in my mac using bootcamp but i cancelled in between .now when again i tried it shows the startup disk cannot be partitioned or restored to a single partition.

Hi Loner T - are you able to assist me as well?

I'm hoping to remove all partitions back to just a single volume. BCA has failed. I've tried erasing/modifying in Disk Utility to no avail (at the direction of Apple Care Support). Numerous contacts to support (and my own efforts to fix) have seemingly made my diskutil list unrecognizable to anything I can decipher, and support has now suggested I visit a store to resolve the issue. The soonest appointment is a week from now. Any assistance I can get before then would be great.. Or, if it's not salvageable, I'll just wait for my store appointment.

Here's the results of diskutil list.

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage MACHD 1.1 TB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Apple_HFS OSXRESERVED 7.9 GB disk0s4

5: Apple_HFS 523.2 MB disk0s5

6: EFI 104.9 MB disk0s6

7: Apple_HFS Untitled 16.8 MB disk0s7

8: Apple_HFS 523.2 MB disk0s8

9: EFI 104.9 MB disk0s9

10: Apple_HFS Untitled 914.1 GB disk0s10

11: Apple_Boot 134.2 MB disk0s11

/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk1

1: EFI EFI 209.7 MB disk1s1

2: 7C3457EF-0000-11AA-AA11-00306543ECAC 121.1 GB disk1s2

/dev/disk2 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS MACHD +1.1 TB disk2

Logical Volume on disk0s2

3E9EEEF8-7A56-4587-85F6-25DE938E6ADC

Unencrypted

/dev/disk3 (disk image):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme +36.8 MB disk3

1: Apple_partition_map 32.3 KB disk3s1

2: Apple_HFS Steam 36.7 MB disk3s2

Amazing. I should have asked you a lot sooner.

Anyway... I appreciate your time here. I noticed you've spent the last several years being active and supportive to various communities - thanks for that too.

Hello everyone,

I am experiencing the same problem. I am trying to remove windows via bootcamp from my new Macbook Pro, but this error message appears when trying to do so: "The startup disk cannot be partitioned or restored to a single partition. The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows."

The terminal command gives me the following output:

Any help is highly appreciated!

I continue to have this issue as I'm attempting to remove and only use one partition.

sh-3.2# diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *251.0 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_APFS Container disk1 159.3 GB disk0s2

3: Apple_KernelCoreDump 655.5 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 90.8 GB disk0s4

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +159.3 GB disk1

Physical Store disk0s2

1: APFS Volume MacOSx 121.3 GB disk1s1

2: APFS Volume Preboot 20.9 MB disk1s2

3: APFS Volume Recovery 509.8 MB disk1s3

4: APFS Volume VM 1.1 GB disk1s4

When I use the diskutil to format the Bootcamp partiton, BC still gives me the error. I'm using High Sierra on my mid 2014 MacbookPro

Hi Loner T. I think you deserve an Apple accommodation for all of the support on this issue. I just ran into this problem this morning trying to remove the bootcamp partition and found this thread. If possible, could you help me out? I'm on an early 2015 Macbook Air running 10.13.3. I thought I just had an OS partition and a Windows 10 partition, but I'm worried something has gotten mucked up now that I'm seeing the error from BC Assistant. This is the output from diskutil list:

Last login: Sat Feb 24 09:03:25 on console

dans-air:~ DanMacBookAir$ 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 400.0 GB disk0s2

3: Microsoft Basic Data BOOTCAMP 99.6 GB disk0s3

4: Windows Recovery 471.9 MB disk0s4

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +400.0 GB disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 297.6 GB disk1s1

2: APFS Volume Preboot 19.5 MB disk1s2

3: APFS Volume Recovery 509.8 MB disk1s3

4: APFS Volume VM 1.1 GB disk1s4

dans-air:~ DanMacBookAir$ diskutil cs list

No CoreStorage logical volume groups found

dans-air:~ DanMacBookAir$

Thanks for the swift reply, loner, i have posted a new discussion: Bootcamp "The startup disk cannot be partitioned or restored to a single partition" error.

And unfortunately, i can't, i've been on beta software for over a year now and i have a lot of files on my pc now that i cant afford to lose by going back with time machine.