EaseUS Partition Master

A simple partition tool to manage disk space in Windows 10

Fix The Specified Disk Is Not Convertible

Brithny updated on Oct 12, 2020 Partition Master | How-to Articles

Diskpart says the specified disk is not convertible

"Last night, I booted up my PC with a Windows 10 Pro install disk and ran Diskpart, hoping to convert my system disk from MBR to GPT. But when I perform clean and convert GPT command on disk 0 (which is my system disk) and it says: "the specified disk is not convertible. CDROMs and DVDs are examples of disks that are not convertible". how do I fix the error and get the disk converted to GPT successfully?"

Fix the specified disk is not convertible error

To convert between MBR and GPT disk using Diskpart, you should first clean the disk. But Windows will not allow you to wipe the hard drive when it is running, that makes it quite difficult to convert system disk to GPT or vice versa. One of the solution to fix the issue is to boot the computer and start DiskPart from a Windows installation disk. But some users reported that they got the specified disk is not convertible error while doing so. 

Steps to fix the specified disk is not convertible error

Here, EaseUS partition software is offered to help you to get rid of this issue. This professional disk management tool is capable of converting a hard drive with Windows installed to GPT or MBR partition style without wiping the hard drive or reinstall Windows. And no the specified disk is not the convertible error will happen during the process. 

Step 1. Download and launch EaseUS Partition Master on your Windows computer.

Step 2. Right-click the MBR disk that you want to convert and choose "Convert to GPT".

convert MBR to GPT - 1

Step 3. After that, find and click the "Execute 1 Operation" button on the toolbar and choose "Apply" to start the conversion. You need to restart your device to enable this change.

convert MBR to GPT - 2

Yes, only three steps, you'll easily convert system disk from MBR to GPT without losing data or being frustrated by the specified disk is not convertible error. 

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