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Trying to convert from an MBR to a GPT partition to install Windows X on a Yosemite Hackintosh

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Hi Guys,

I have been using a Hackintosh which runs Yosemite (version 10.10.5) for a number years now that has bee partitioned to allow me to install Windows X at a later date. Today I began the process of installing Windows X but when I selected the partition reserved for the install I am met with a message which says (see photo):

"Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks.

Windows cannot be installed to this disk space. Windows must be installed to a partition formatted as NTFS."

Can someone please advise me how I can convert from a MBR partition table to a GPT partition table? Also can this be done without risking the data on my Yosemite build?

Thanks in advance.
 

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To convert disk from MBR to GPT, you can use Disk Management. First open disk management by right click This PC/My computer>Manage>Storage>Disk Management.
Right-click on each partition on the disk you want to convert and select "Delete Volume" to clean the disk.
Right-click on the target disk, and select "Convert to GPT Disk".
If the option is not clickable, or greyed out, you can turn to a free MBR to GPT converter.
Hi Guys,

I have been using a Hackintosh which runs Yosemite (version 10.10.5) for a number years now that has bee partitioned to allow me to install Windows X at a later date. Today I began the process of installing Windows X but when I selected the partition reserved for the install I am met with a message which says (see photo):

"Windows cannot be installed to this disk. The selected disk has an MBR partition table. On EFI systems, Windows can only be installed to GPT disks.

Windows cannot be installed to this disk space. Windows must be installed to a partition formatted as NTFS."

Can someone please advise me how I can convert from a MBR partition table to a GPT partition table? Also can this be done without risking the data on my Yosemite build?

Thanks in advance.
 
Last edited:
Joined
Jun 17, 2014
Messages
30
Motherboard
HP Probook 4540s
CPU
i5
Graphics
HD4000, 1366x768
Mac
  1. iMac
  2. Mac Pro
Mobile Phone
  1. iOS
To convert disk from MBR to GPT, you can use Disk Management. First open disk management by right click This PC/My computer>Manage>Storage>Disk Management.
Right-click on each partition on the disk you want to convert and select "Delete Volume" to clean the disk.
Right-click on the target disk, and select "Convert to GPT Disk".
If the option is not clickable, or greyed out, you can turn to a free MBR to GPT converter.

The issue has now been resolved. Thanks for your help. :)
 
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