Windows 10: Gpt conversion issues

I've cloned my 1tb drive (mbr) onto a 6tb drive. I want to use the unallocated space, so I converted the drive to gpt and now it won't boot past bios. Would anyone have any suggestions for me?

submitted by /u/miniandrewmini
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:)

 

conversion from GPT to MBR ..of free allocated drive

Hi,

For better assistance with your conversion of volume from GPT to MBR issue, we suggest posting it in our Microsoft TechNet
forum.

Please post back if you have any Windows concerns for further assistance.

 

Cannot convert GPT to MBR.

Hi Michael,



I suggest you to follow the below steps and check if it helps.

This method you have to backup all your data and delete all partitions and volumes. Then use the
DISKPART command.

• Open command prompt and type in DISKPART and press Enter
• Then type in list disk (Note down the number of disk you want to convert to GPT)
• Then type in select disk number of disk
• Finally type in convert gpt.

Hope the information helps. Do reply if you need further assistance.

 

GPT disk conversion for both data drives and C drive


Newbie to the Windows 10 world.

I just purchased a 6 TB drive, plugged it into my Windows 7 computer, and it worked fine for a system backup using Macrium prior to the Windows 10 conversion. Now am converted to Windows 10, and reading that I need the large drives converted to GPT from MBR.

I have found reference to the AOMEI Partition Assistant to make this conversion on the data drive, but the C drive is a different animal.

My understanding is that GPT is necessary for the large data drive, and only necessary for the GPT on the C drive if I migrate to UEFI.

I have two questions:
Is it necessary to have the 6 TB drive formatted in GPT, or does it solve any capacity issues I may have with MBR?
To convert the C drive to GPT, what are the steps I need to take to make this work? Make a Macrium backup and rescue disk, save an image file, reformat C drive, and then reload the image onto C drive, now in GPT format?

Would reloading an image onto a differently formatted C drive actually work? Or am I making this too complicated?