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I'd need some help from someone experienced enough in converting MBR to GPT

post #1 of 13
Thread Starter 
I want to convert my 2TB WD HDD from MBR to GPT. I've got three Primary partitions and one Logical drive on it. On one of the Primary partitions I've got Windows 7 Pro 64-bit installed and on another one I've got Windows XP 32-bit installed, the third Primary is used simply for data storage. How do I convert it to GPT WITHOUT losing any data and also keeping both Windows OS bootable after that, especially XP? If you need any more info about my system, just ask.
post #2 of 13
Simple. You can't.

Conversion is certainly possible, but there is nothing you can ever do to get XP to boot off a GPT disk.

Vista and newer can boot from GPT, but only if you have a UEFI motherboard.
Edited by Zero4549 - 7/29/16 at 5:05am
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by Zero4549 View Post

Simple. You can't.

Conversion is certainly possible, but there is nothing you can ever do to get XP to boot off a GPT disk.

I was expecting something like that. Anyway, what would you do for example, what do you think is the second best option?
post #4 of 13
Quote:
Originally Posted by Jake3 View Post

I was expecting something like that. Anyway, what would you do for example, what do you think is the second best option?

Well... do you have a NEED for XP? If not, losing it would be the obvious choice (assuming you have UEFI and GPT is bootable for you at all).

Hard drives are also real cheap these days. You could move the XP partition to its own drive and keep that as MBR.

Of course, you could simply do nothing. GPT isn't going to make a world of difference when you're still using archaic NTFS (which, you are, as long as you are using Windows) and you only want 3 partitions.
Edited by Zero4549 - 7/29/16 at 5:19am
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post #5 of 13
Depending on how good your PC and your needs you could run it as a VM.
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post #6 of 13
Thread Starter 
Quote:
Originally Posted by Zero4549 View Post

Of course, you could simply do nothing. GPT isn't going to make a world of difference when you're still using archaic NTFS (which, you are, as long as you are using Windows) and you only want 3 partitions.

If I decide to do nothing, then will adding another drive at a later date and installing Windows 10 on it, which will be GPT, create any problems?
Quote:
Originally Posted by BritishBob View Post

Depending on how good your PC and your needs you could run it as a VM.

I believe the system is more than good enough for VM. Though I don't know how would the transferring from non-VM XP to XP on VM work. Sounds like a bit of a hassle. Could you describe it, even if you do so concisely, to see if I should consider it as an option at all?
post #7 of 13
Quote:
Originally Posted by Jake3 View Post

If I decide to do nothing, then will adding another drive at a later date and installing Windows 10 on it, which will be GPT, create any problems?
I believe the system is more than good enough for VM. Though I don't know how would the transferring from non-VM XP to XP on VM work. Sounds like a bit of a hassle. Could you describe it, even if you do so concisely, to see if I should consider it as an option at all?

No issues with future Windows 10 on new drive.
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post #8 of 13
Thread Starter 
Quote:
Originally Posted by Zero4549 View Post

No issues with future Windows 10 on new drive.

Even if it's configured as GPT and not MBR?
post #9 of 13
Quote:
Originally Posted by Jake3 View Post

Even if it's configured as GPT and not MBR?

Nah your good. There are tons of tools out there that will convert from physical to virtual. I used Marcrium all the time for that. Just google phsycial to virtual VM conversion and read up.
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post #10 of 13
Thread Starter 
Quote:
Originally Posted by Zero4549 View Post

GPT isn't going to make a world of difference when you're still using archaic NTFS (which, you are, as long as you are using Windows) and you only want 3 partitions.

I forgot to ask about this - what would be an alternative? What OS could one use so as to avoid NTFS, and what benefits come from using another type of file system? Do you mean Linux? Anything other than Linux?


Edit: Also, is there any difference in boot times between MBR and GPT?
Edited by Jake3 - 7/29/16 at 6:16am
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