Windows 10: Remove MBR partitions

I have a 10 TB hard drive installed on my computer strictly for back up and long term storage. Unfortunately I am only able to access 2TB because of a MBR partition the rest of the drive remains unallocated. How do I remove this partition so that I may have access to the rest of the the drive?


My (C operating system and boot files are located on a different/separate M.2 drive. As this computer is my workstation for video editing I have additional internal and external drives for my project files.

:)

 

clone MBR HD to bootable GPT partition?

Hi,

1. You cannot convert mbr to gpt without data loss. otherwise, you can follow directions here:

FROM WINDOWS RECOVERY CONSOLE:

To change a master boot record disk into a GUID partition table disk using a command line

• 
  Back up or move the data on the basic master boot record (MBR) disk you want to convert into a GUID partition table (GPT) disk.
  
• 
  Open an elevated command prompt (right-click Command Prompt, and then click Run as Administrator) and type diskpart. If the disk does not contain any partitions or volumes, skip to step 6.
  
• 
  At the DISKPART prompt, type list disk. Make note of the disk number you want to convert.
  
• 
  At the DISKPART prompt, type select disk <disknumber>.
  
• 
  At the DISKPART prompt, type clean.
  

2. I'd suggest converting your vista drive to a virtual machine, load that up on your windows 10 system and use a program like virtualbox to run it.

 

Convert only one partition on the disk from MBR to GPT

Follow the steps listed here on using GPTgen. He also lists how to create and restore backups.

Converting MBR to GPT without deleting your partitions

 

Windows 10 & 7th gen Intel Core processors in UEFI mode running on MBR partitions

Hi John,

MBR partition is for older laptops but there's a workaround for it. It is to convert MBR to GPT. In this case, you can use a disk partition management. Try these steps:

• Click "Start Menu" > input "diskpart" in the search box and press "Enter" > Click "Yes" to open command prompt.
• Type "list disk" and press "Enter".
• Type "select disk n" and press "Enter". n is the number of the disk you want to convert. (take "Disk 1" for example)
• Input "clean" and press "Enter" to delete all partitions or volumes on the selected disk.
• Type "convert mbr" and press "Enter" to complete the conversion from GPT to MBR format.

Inform us for any updates regarding your issue.