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How to know a disk is MBR or GPT

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May 2, 2011 5:48:27 AM

Hello,
Before I initialize my new 2TB HDD, I would like to know my previous HDD, also 2TB was done in GPT or MBR.

More about : disk mbr gpt

a c 371 G Storage
May 2, 2011 12:36:30 PM

I'm guessing your current drive is MBR. I believe the diskpart "list disk" command will show if a drive is GPT or not.
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a c 289 G Storage
May 2, 2011 3:47:23 PM

Hawkeye22 said:
I'm guessing your current drive is MBR. I believe the diskpart "list disk" command will show if a drive is GPT or not.

Diskpart will indeed, but it is not the most informative thing that I have ever seen. The output is

DISKPART> LIST DISK

Disk ### Status Size Free Dyn Gpt
-------- ---------- ------- ------- --- ---
Disk 0 Online 75 GB 0 B


If Gpt is blank, then no GPT. However, if you go into Control Panel - Administrative Tools - Computer Management, select the Disk Management screen, right-click on the disk part (little box on the left, not the volume part) of the picture of the drive, and select Properties, you can read the "Partition Style" property in plain whatever-language-you-have-localized. Mine says "Master Boot Record (MBR)," which is pretty easy to read.
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a c 371 G Storage
May 2, 2011 3:55:35 PM

WyomingKnott said:
However, if you go into Control Panel - Administrative Tools - Computer Management, select the Disk Management screen, right-click on the disk part (little box on the left, not the volume part) of the picture of the drive, and select Properties, you can read the "Partition Style" property in plain whatever-language-you-have-localized. Mine says "Master Boot Record (MBR)," which is pretty easy to read.


Is this in win7? In XP if I select properties, it gives the same dialog box as if I selected properties from the drive in device manager. There is no "partition style" located on this dialog box.
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a c 289 G Storage
May 2, 2011 4:44:58 PM

Hawkeye22 said:
Is this in win7? In XP if I select properties, it gives the same dialog box as if I selected properties from the drive in device manager. There is no "partition style" located on this dialog box.

Nope. XP. Just did it on my machine here at work; XP SP2.

My bad: After the properties box comes up, select the tab labeled "Volumes." For me, that tab is blank if I go through Device Mangler.
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a c 371 G Storage
May 2, 2011 4:48:45 PM

WyomingKnott said:
Nope. XP. Just did it on my machine here at work; XP SP2.

My bad: After the properties box comes up, select the tab labeled "Volumes." For me, that tab is blank if I go through Device Mangler.


Ah, ok, I see it. What is weird though is if I access the volumes tab from the device manager route, all fields just show a dash, but accessing the same tab via disk management shows all the info. make me wonder if it's just these stupid Dell's we use at work, LoL!
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a c 813 G Storage
May 3, 2011 12:49:11 AM

ok on my works non-Dell I had to click the POPULATE button on the bottom part of the volumn tab screen from Device manager and it changes all the dashes to the correct info including the Partition Style.
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May 9, 2011 6:11:44 PM

Thanks, I have tried LIST DiSK and there is no display (blank) under the GPT column. My OS is Win 7-64.
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May 9, 2011 6:14:27 PM

Best answer selected by c553team.
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March 31, 2013 12:32:11 AM

In win 7 I had to do the added step of clicking on "hardware" tab then select the drive again, then click properties button then click on tab volumes then click populate button and then it lists it is MBR.

Thanks!
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March 24, 2014 8:44:49 AM

I did this - looked at the properties of my VOL. I have a Windows 7 64-bit GPT disk
But it said:
Partition style: Master Boot Record (MBR)
Has anyone seen anything but "Partition style: Master Boot Record (MBR)"?
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4 minutes ago

My 3TB drive is showing GPT by this method
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