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How to Convert GPT to MBR without Operating System

Jan 02, 2018 / Posted by Brithny to Partition Master

Summary:
Need to convert GPT to MBR but cannot access OS? This page shows you how to convert GPT to MBR without operating system using EaseUS bootable partition manager. No data loss will happen!

How can I convert GPT to MBR without operating system??

"I wiped my Windows 8 and thinking I could operate with Windows 7. But when I am trying to install Windows 7, it says "The Selected Disk is of the GPT Partition Style" and refuses to format the partition. How do I convert GPT to MBR without data loss while having no access to OS?"

EaseUS partition software helps to convert GPT to MBR without OS!

For certain reasons, users want to convert GPT to MBR disk. At most times, it is an easy job. But, in some special situations, just like the above case, users are forced to convert GPT disk to MBR while having no access to the operating system. It is hard to image how they can get this job done. Here, third-party bootable partition manager can make the job much easier.

Now, EaseUS partition software is one of such programs you can try. Just create a bootable media (USB disk or CD) and boot into BIOS to select the boot disk as the first boot device, then you can run the program and convert GPT to MBR without access to the operating system. No data loss will happen during the process! And you can also deal with any other disk related jobs such as format, copy or resize disk partition. 

Steps to convert GPT to MBR without operating system

Step 1. Create a USB bootable partition software

1. Connect a USB flash drive, pen drive, memory stick, etc to a working PC.

2. Launch EaseUS Partition Master, select "Create WinPE bootable disk" on the main window.

Create a USB bootable partition software - choose 'Create WinPE bootable disk' option

3. Select the external USB device and then start to create a bootable disk of EaseUS partition software.

Create a USB bootable partition software - choose an external USB device

After making a bootable USB bootable partition software, you can take the following steps to convert GPT to MBR without operating system.

Step 2. Convert GPT to MBR without running Windows operating system

1. Launch EaseUS partition tool from the USB bootable disk you have made on the PC that has no operating system.

2. Right-click the disk that you want to convert, right click and select "Convert GPT to MBR" option in the drop-down list.

convert GPT to MBR without operating system - choose the right option

 3. Click "Apply" button on the toolbar and confirm your operation by click "Yes" in the popup dialog to commit the changes.