I got a MacBook Pro and installed Windows 10 using Boot Camp and all was fine. I then needed to create a 50GB NTFS partition, when Windows prompted me to convert to a dynamic disk, I mistakenly hit enter.

When I rebooted PC, the Mac option was gone. Could you please help me to restore my Mac partition and data?

  • This is unlikely to be a simple fix. If you have backups, then just wipe it all & start over. Otherwise, have a look at this - apple.stackexchange.com/questions/224702/…? Note that Windows doesn't understand how it is being 'fooled' into thinking it is in charge; never let anything adjust partitions from inside Boot Camp.
    – Tetsujin
    Sep 28, 2018 at 6:41

1 Answer 1


Multiple people have hit the exact same issue that you described. As per Microsoft documentation, other operating systems like macOS and Linux do not understand Dynamic Disks.

Fortunately, what you did can be reverted. It's not straightforward, but it is 100% possible using the open-source utility named TestDisk. Do try it out -- there's some pain involved, but it will be worth the result.

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