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  1. Joined : Dec 2015
    California, USA
    Posts : 115
    Windows 7 64 Pro
       10 May 2016 #1

    Why GPT instead of MBR partitions for boot drive?


    My boot drive is a 512 GB SSD and it has MBR partitions. I'm currently running Win 7 Pro 64 on an ASUS motherboard system with a UEFI BIOS.

    I'm about to upgrade to Win 10. Is there any benefit to redoing the boot drive with GPT partitions as part of that process?

    x509
      My System SpecsSystem Spec


  2. Joined : Jun 2015
    Sunnyvale, CA
    Posts : 40
    Windows 10 Pro 64-bit
       10 May 2016 #2

    Secure Boot works better with GPT formatting.
      My System SpecsSystem Spec


  3. Joined : Aug 2015
    Maine
    Posts : 20,990
    Windows10Pro 64Bit on 2 DeskTop Computers
       10 May 2016 #3

    x509 said: View Post
    My boot drive is a 512 GB SSD and it has MBR partitions. I'm currently running Win 7 Pro 64 on an ASUS motherboard system with a UEFI BIOS.

    I'm about to upgrade to Win 10. Is there any benefit to redoing the boot drive with GPT partitions as part of that process?

    x509
    Read the msgs in this thread.....bottom line is GPT IS a better choice.
    GPT versus MBR for W10 boot SSD?
      My System SpecsSystem Spec


  4. Joined : Dec 2015
    California, USA
    Posts : 115
    Windows 7 64 Pro
       10 May 2016 #4

    OldMike65 said: View Post
    Read the msgs in this thread.....bottom line is GPT IS a better choice.
    GPT versus MBR for W10 boot SSD?
    Old Mike,

    Thanks. For me the deal clincher was secure boot that protects against rootkits. Now I'm going to try that utility that allows conversion in place from MBR to GPT.

    x509
      My System SpecsSystem Spec


  5. Joined : Jul 2015
    Posts : 734
    Windows 10 Home x64
       10 May 2016 #5

    I am pretty satisfied with MBR on my SSD. I think the "GPT is better" mantra is out of proportion.
      My System SpecsSystem Spec


  6. Joined : Dec 2015
    Posts : 2,441
    Windows10
       11 May 2016 #6

    eLPuSHeR said: View Post
    I am pretty satisfied with MBR on my SSD. I think the "GPT is better" mantra is out of proportion.
    GPT allows more than four primary partitions

    You can use drives over 2.2 TB with OS on it if GPT.

    GPT supports secure boot.

    Easier to repair boot issues with UEFI install.

    So no it is not out of proportion!
    Last edited by cereberus; 12 May 2016 at 05:43.
      My System SpecsSystem Spec


  7. Joined : Aug 2015
    Maine
    Posts : 20,990
    Windows10Pro 64Bit on 2 DeskTop Computers
       11 May 2016 #7

    cereberus said: View Post
    GPT allows more than four primary partitions

    You can use drives over 2.2 GB with OS on it if GPT.

    GPT supports secure boot.

    Easier to repair boot issues with UEFI install.

    So no it is not out of proportion!
      My System SpecsSystem Spec


  8. Joined : Nov 2015
    Posts : 192
    Windows 10 Home
       11 May 2016 #8

    Actually I prefer MBR for the dual boot situation, as where if you wish to access the other os is not possible with GPT.
    I believe the above posts refer to TB not GB.
      My System SpecsSystem Spec


  9. Joined : Dec 2015
    California, USA
    Posts : 115
    Windows 7 64 Pro
       11 May 2016 #9

    SonicBlue said: View Post
    Actually I prefer MBR for the dual boot situation, as where if you wish to access the other os is not possible with GPT.
    I believe the above posts refer to TB not GB.
    Not sure I understand. Can you explain.

    Thanks.
      My System SpecsSystem Spec


  10. Joined : Nov 2015
    Posts : 192
    Windows 10 Home
       11 May 2016 #10

    x509 said: View Post
    Not sure I understand. Can you explain.

    Thanks.
    MBR limits the maximum addressable storage space of a disk to 2 TerraBytes (232 512 bytes). NOT Giga
      My System SpecsSystem Spec


 
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