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Level 1

9 points

High Sierra Bootcamp Partition Problem -8gb 40gb

Hi all,

Hoping someone can help.

I am trying to install windows onto my late 2012 i7 Mac mini however I am having trouble partitioning the drive.

I am only given the option of 40gb or (bizarrely) -8gb (minus 8gb).

Clicking Divide Equally does nothing, neither does dragging the slider. If you just 'click' on the partitions it swaps repeatedly through 40gb and -8gb.

It happens whether it's windows 7 or windows 10 installed.

I currently have a fusion drive setup as below however I have also tried splitting them into two separate drives and I've also manually created a 120gb, 500gb, 500gb partition with one of the 500gb's as FAT - no success.

I've seen threads relating to the same thing going back several years with no fix arrived at, surely Apply have fixed this issue or don't they care about Bootcamp any longer?

Any help gratefully received.

Mac mini, macOS High Sierra (10.13.3)

Posted on Mar 13, 2018 10:53 AM

Best reply

Loner T

Level 9

59,471 points

Posted on Mar 13, 2018 1:29 PM

You have a 2012 Mini, which should have three options in Bootcamp Assistant. The first two - Create and Download options - allow a USB2 flash drive installer to be created. The last option - Install - partitions the disk and reboots into the Windows installer.

Create the USB2 installer.

Once you have the installer built, create a FAT partition manually, via Disk Utility, and you will need to create a MBR manually using GPT FDisk, and manually start the Windows installer from the USB using a reboot and Alt/Option key.

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High Sierra Bootcamp Partition Problem -8gb 40gb

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