Windows 8 and 8.1 Forums


How to make my primary drive GPT1 and my second drive GPT2

  1. #1

    How to make my primary drive GPT1 and my second drive GPT2


    I have a laptop that has an SSD with Win 8.1 + programs, and an HDD for projects. They are both formatted GPT. When I launch Macrium, for some reason my SSD is now GPT 1 and the second drive is now GPT 2. This is confusing because I'm used to imaging the top line of partitions which is usually my OS. Now that the GPT numbers are reversed, I have to be careful when doing my backups.

    Does anyone know how to change this assignment so that the SSD will be GPT1 again?

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  2. #2


    I just give them separate names, "System" for first, boot drive, "Data 1", for next and others by names that describe what I'm using them for. That way there is no confusion when some programs or OSs reverse or mix order.
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  3. #3


    Hmm, this doesnt truly answer my question Count Mike. They already have their own names. I'm talking about some sort of assignment that is done under the hood. In Disk Management, the primary drive was bumped to Disk 1 after I installed the second drive, which took its place as Disk 0.

    Is there no way to exchange these assignments?

    Update: looks like its a common issue for which there is no definite solution... Disk numbers in Disk Management matters? - Windows 7 Help Forums
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  4. #4


    Maybe if you changed their places on the SATA ports in MB. It just stands to reason that HDD0 becomes GPT1 and next one GPT 2. It's also logical that BOOT/system drive be first drive /HDD0.
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  5. #5


    I cannot change their ports... this is a laptop that came with ONE drive. I swapped it out for an SSD and installed Windows 8.1 on it. Once all that was done, I installed a second drive where the optical drive used to be, using an HDD Caddy. This is what bumped the SSD to Disk 1 from Disk 0. So it actually looks at where my optical drive used to be as Disk 0! Hmmm...
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  6. #6


    Quote Originally Posted by orlando1974 View Post
    I cannot change their ports... this is a laptop that came with ONE drive. I swapped it out for an SSD and installed Windows 8.1 on it. Once all that was done, I installed a second drive where the optical drive used to be, using an HDD Caddy. This is what bumped the SSD to Disk 1 from Disk 0. So it actually looks at where my optical drive used to be as Disk 0! Hmmm...
    Anything in BIOS that can turn things around. I know, laptop BIOSes are not exactly power houses but.....
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  7. #7


    Not sure where I would look.
    Off topic, in going into my American Megatrends bios I did notice that Fast Boot is set to Disabled. I'm already finding the boot is incredibly fast... and this is turned off. I wonder if I should turn it on.. i dont know what it does?
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  8. #8


    Quote Originally Posted by orlando1974 View Post
    Not sure where I would look.
    Off topic, in going into my American Megatrends bios I did notice that Fast Boot is set to Disabled. I'm already finding the boot is incredibly fast... and this is turned off. I wonder if I should turn it on.. i dont know what it does?
    Goes faster thru BIOS, no relation to OS. Starts Booting faster before windows starts to boot. With an SSD really not necessary.
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  9. #9


    OK thanks.... well original question not solved still, so I'll leave the thread open for a bit. Seems to me there's no solution... seems to have happened to lots of people when they install an SSD alongside other drives. Weird though because I had specifically installed OS prior to connecting second HDD.
      My System SpecsSystem Spec

  10. #10


    Quote Originally Posted by orlando1974 View Post
    OK thanks.... well original question not solved still, so I'll leave the thread open for a bit. Seems to me there's no solution... seems to have happened to lots of people when they install an SSD alongside other drives. Weird though because I had specifically installed OS prior to connecting second HDD.
    You did that part right, why is GPT switching and if on MBR it does not happen ? If you are using GPT because of UEFI Bios, you don't need second HDD to be too, MBR should work on it.
      My System SpecsSystem Spec

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How to make my primary drive GPT1 and my second drive GPT2
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