Can't convert MBR Hard Drive to GPT?

Yaqzan · Aug 14, 2015

I have a 4gb HGST Internal harddrive, but hooking it up only shows 2TB available with the rest unallocated. It's in MBR format, so that's probobly why.

My problem is, I can't convert it to GPT. Disk Management and Easeus both grey out the options for converting or doing anything with the drive in general.

BTW, this drive isn't my boot drive. I'm booting from another SSD.

It gives me something like this:

spunk.funk · Aug 14, 2015

You have to Initialize the drive GPT.
Go Start/Search and and type CMD, right click the CMD results and Run As Administrator. In the Elevated Command Prompt type these bold commands pressing Enter after each one.
Diskpart
List Disk shows disks on computer with a number
Select Disk <disk number> disk number being the drive number you want to select.
Clean this will wipe all data on the drive, so be sure you selected the right one
convert GPT after pressing enter at this point you can go back to Disk Management and create a partition and format the drive NTFS or continue on here.
create primary partition
format fs=ntfs quick
list disk the drive should now show it's full disk size.
exit

Yaqzan · Aug 16, 2015

Thank you spunk, this solved the problem.

spunk.funk · Aug 16, 2015

We're glad this helped you. Please mark this thread Solved in the Thread Tools at the top.

Can't convert MBR Hard Drive to GPT?

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