Saturday 12 December 2015

Steps to Convert GPT to MBR disk using Command Prompt

GPT (GUID Partition table) and MBR (Master Boot Record) are two types of layout that are used to create partition or volume on a hard disk. MBR is based on BIOS whereas GPT is based on (EFI) Extensible Firmware Interface. In this blog, I will provide you the simplest way to convert GPT to MBR using command prompt.

GPT is an improvement over MBR since it allows you to create up to 128 primary partitions. However, not all Windows operating system support GPT partition, like Windows 95/98/ME, NT4, 2000, Windows server 2003 32-bit, and Windows XP 32-bit are compatible only with MBR. If you need to access GPT disk in these Windows operating system then you will have to convert GPT to MBR using command prompt.

Steps to Convert GPT to MBR using Command Prompt

 

Before starting the conversion, it is recommended to backup all your data that are in GPT disk in order to prevent data loss because GPT to MBR conversion requires deletion of all partitions and volumes on a disk. Easy steps to convert GPT to MBR using command prompt are listed below.

Step 1. Open an elevated command prompt.
Step 2. Type diskpart in command prompt to start the conversion process GPT to MBR.



Step 3. Type list disk as shown below, this command will display all disks that are available in your system.



Step 4. Now type select disk <disk number> as shown in below figure, the disk which need to be converted from GPT to MBR.



Step 5. After selecting the disk, all volumes of a disk will be viewed by typing detail disk as shown below.




Step 6. Now select volume by typing command select volume <volume number> as shown below.



Step 7. In this step type delete volume. Once the command has been executed, repeat Step 6 and 7 to delete all volumes. 
Or
After performing step 4, you can type clean command to delete all partitions at once.

Step 8. In the last step, type select disk <disk number> then type convert mbr, this command will convert your GPT disk to MBR disk.



Step 9. Type exit and press enter.

The above blog has provided you a guide for manually converting GPT to MBR disk using command prompt with DiskPart.exe commands.









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