When attempting to add a Windows 10 (April 2018, build 1803) partition to my 2019 iMac, I get stuck on "Partitioning disk..." perpetually. Partitioning disk...

When I look at Disk Utility, the OSXRESERVED and BOOTCAMP partitions appear:

Disk Utility partitions

My iMac is running the latest stable release of macOS, 10.14.5 (18F132). Is there a known bug/solution to this problem?

  • Just making sure, you waited enough time before quitting out of Bootcamp? I had to wait for around 20 - 30 mins for it to finish partitioning.
    – leon
    Commented Jun 11, 2019 at 4:01

1 Answer 1


Apple released a patch for my issue here: https://support.apple.com/kb/DL2007

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .