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

Hi, all. I'm trying to remove Windows from my Mac to free up more space. However, when I try to remove it the conventional way (by using Boot Camp), I get an error that says "The startup disk cannot be partitioned or restored to a single partition." It goes on to say "The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows." I already tried erasing the disk and unmounting it in Disk Utility. Any help would be appreciated.

MacBook, macOS Sierra (10.12.5)

Posted on Jul 15, 2017 6:33 AM

532 replies

Nurautas

Level 1

4 points

Dec 23, 2018 9:44 AM in response to Loner T

Thanks a lot bro! U save me!!!!!

Loner T

Level 9

59,526 points

Dec 23, 2018 5:34 PM in response to Nurautas

Nice.

Loner T

Level 9

59,526 points

Dec 29, 2018 4:09 PM in response to wkw8888

Run

diskutil apfs resizeContainer disk1 0g

and check.

Loner T

Level 9

59,526 points

Dec 29, 2018 4:37 PM in response to wkw8888

Excellent.

terriy

Level 1

4 points

Jan 5, 2019 10:01 PM in response to Loner T

terriy

Level 1

4 points

Jan 5, 2019 10:00 PM in response to terriy

Loner T

Level 9

59,526 points

Jan 6, 2019 4:39 AM in response to terriy

e

Are you trying to ask a question?

Jan 9, 2019 4:52 AM in response to Loner T

So I can restart without fear?

Is there something I can do clean up the leftovers from BootCamp?

Loner T

Level 9

59,526 points

Feb 5, 2019 5:06 AM in response to anntd

You have a larger issue. Can you start a new discussion?

Loner T

Level 9

59,526 points

Feb 5, 2019 5:50 AM in response to anntd

Post back when you are ready.

Loner T

Level 9

59,526 points

Feb 5, 2019 4:56 PM in response to isopaite

Please reboot, so you disk slices can be correctly ordered. Post the output of

diskutil list

before we go further.

jdabdon

Level 1

13 points

Feb 7, 2019 1:21 PM in response to Loner T

I have a 27 inch 2017 5k Retina iMac, and yes I have a fusion drive and running Mojave. is that a known issue with fusion drives? what's the current workaround?