Windows 10: Converting MBR to GPT without data loss on a non-system disk

HiI have an MBR system/OS disk running Windows Server 2016 Data Centre edition. I have a secondary, 2TB data disc. I'd like to expand capacity on the secondary disc to 3TB, preferably without data loss. After spending much time on Google, I'm still confused as to whether it's possible to convert the secondary disc from MBR to GPT without data loss, and without changing the primary system/OS disc from MBR.I've had a look at the MBR2GPT utility, but it tries to identify an OS partition, which of course is not on the disc I'm trying to convert. Validation on the secondary disk fails for MBR2GPT

:)

 

Convert only one partition on the disk from MBR to GPT

Step 2
Convert MBR to GPT without data loss

 

Convert MBR to GPT without data loss?

You can use AOEMI Partition Assistant, a freeware that allows you to
convert MBR to GPT without data loss. If you want to have a 100% security, you can backup your whole disk with the brother product - AOMEI Backupper.

 

convert MBR to GPT disk

convert mbr to gpt

There is a way to convert mbr to gpt without data loss. clean command deletes all datas inside the disk, so dont use this command

boot with windows dvd , and get into command prompt

type diskpart , find the disk number , which is need to convert mbr to gpt

say disk number is 0

exit diskpart

type below command in command prompt

mbr2gpt /convert /disk:0

wait for some minutes to complete , once you get commpleted successfuly means, exit and close ,

shutdown the pc , remove windows dvd

important

After the disk has been converted to GPT partition style, the firmware must be reconfigured to boot in UEFI mode.


Make sure that your device supports UEFI before attempting to convert the disk.