Q: Your disk could not be partitioned - Windows 10

I cannot get past the "Your disk could not be partitioned" error. I have tried to work within Disk Utility to discover any errors. I even used Disk Utility from Safe Boot and it seemed to fix something. I have tried the /sbin/fsck -fy technique without luck.

I was on Microsoft support yesterday and they were able to get me an ISO of Windows 10 that I want to install on my 27" Late 2013 with Fusion drive that has 854.5GB of free space. 16 GB RAM. Running El Cap 10.11.4.

I have a USB stick with the Boot Camp tools and the ISO in the external CD drive.

I saw another post to try to make a 1TB Windows partition. Is that the solution? I really have no desire to burn 1TB on this :-(.

I also saw another solution to back up to TM, erase HD, and restore from TM.

Any ideas?

Aperture 3, Mac OS X (10.6.8)

Posted on May 14, 2016 6:59 AM

I have this question too

Q: Your disk could not be partitioned - Windows 10

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by sterling r,

sterling r May 15, 2016 9:29 AM in response to K J
Community Specialists

May 15, 2016 9:29 AM in response to K J

Hi there K J,

It sounds like you are trying to get Windows installed using Boot Camp but the disk cannot be partitioned for some reason. I would use the troubleshooting in the following article:

Boot Camp: Partition alert message when using Boot Camp Assistant

Thank you for using Apple Support Communities.
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by K J,

K J May 27, 2016 7:11 PM in response to sterling r
Level 1 (20 points)

Windows Software

May 27, 2016 7:11 PM in response to sterling r

This may be a possibility. I opened another thread earlier this evening about the things that I have been working on. I notice the DU your article references is the old version. Is there a way to do the same action in terminal?
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by Vinyz,

Vinyz Jun 25, 2016 11:50 PM in response to K J
Level 1 (4 points)

Windows Software

Jun 25, 2016 11:50 PM in response to K J

I have exactly the same issue. Tried Disk Utility and /sbin/fsck -fy a few times. "disk could not be partitioned" still appears to be there when using Boot Camp Assistant.

Can someone help us out?
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by K J,

K J Jun 26, 2016 9:12 AM in response to Vinyz
Level 1 (20 points)

Windows Software

Jun 26, 2016 9:12 AM in response to Vinyz

Look under my other Post " Boot Camp Fail. Genius Bar struggling"

Boot Camp Fail. Genius Bar struggling

LonerT got me all fixed up. Still have not heard back from "Genius Bar"
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Q: Your disk could not be partitioned - Windows 10

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by sterling r,

by K J,

by Vinyz,

by K J,

Boot Camp Fail. Genius Bar struggling

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