Windows 10: Windows 10 partition installs?

  1.    21 Dec 2015 #1

    Windows 10 partition installs?


    I have windows 10 build 1511 on a USB stick made by windows media creation tool now when install windows the drive has zero partitions.

    When i install the copy from the USB stick i end up with 3 partitions one is 450MB (recovery partition) and another partition at 100MB called (EFI System partition) and last partition is windows 10.

    Now if i delete all the partitions and install windows 10 from the USB drive again i get two partitions one at 500MB called (System Reserved) and the windows 10 partition.

    Why if i install windows 10 multiple times i get different partitions being made?

    I would like it to only make the two partitions every time.
      My ComputerSystem Spec


  2. Posts : 2,033
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       21 Dec 2015 #2

    The first time you installed Windows using GPT partition scheme, therefore you'd get 4 partitions, not 3:

    1. 450MB Recovery partition ===> Contains Reovery tools
    2. 100 EFI System partition ====> Contains boot code. Without it, Windows won't boot
    3. 16MB MSR partition ====> hidden from Disk Management, Required for GPT disk type
    4. C: drive.


    The second time you installed Windows using Legacy MBR, therefore you'd get 2 partitions:
    1. 500MB Reserve partition ===> Contains Recovery tools and Boot code
    2. C: drive.
      My ComputerSystem Spec

  3.    21 Dec 2015 #3

    topgundcp said: View Post
    The first time you installed Windows using GPT partition scheme, therefore you'd get 4 partitions, not 3. One is 16MB MSR partition and hidden from Disk Management:
    450MB Recovery partiution, 100 EFI System, 16MB MSR and your C: drive.

    The second time you installed Windows using Legacy MBR,there fore you's get 2 partitions: 500MB Reserve partition and C: dirve.
    How do you select GPT or MBR when installing windows? I have seen no choice in the windows 10 install screen.

    Thank you for the quick reply!
      My ComputerSystem Spec


  4. Posts : 2,033
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       21 Dec 2015 #4

    From the boot menu, there are 2 selections for the USB: 1 started with prefix UEFI-USB..., the other is just USB...
    Example is from my PC, Yours might look different:

    Click image for larger version. 

Name:	MyBootMenu.JPG 
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ID:	54736
      My ComputerSystem Spec

  5.    21 Dec 2015 #5

    topgundcp said: View Post
    From the boot menu, there are 2 selections for the USB: 1 started with prefix UEFI-USB..., the other is just USB...
    Example is from my PC, Yours might look different:

    Click image for larger version. 

Name:	MyBootMenu.JPG 
Views:	4 
Size:	176.4 KB 
ID:	54736
    So it depends on what mode your USB device is in does that apply to only USB? What about a DVD drive. Here's a pic of my boot option.

    Click image for larger version. 

Name:	boot.jpg 
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ID:	54737


    Thanks again!
      My ComputerSystem Spec


  6. Posts : 2,033
    Ubuntu14.04x64 MintMate17x64 Win10Prox64
       21 Dec 2015 #6

    Same for DVD. From your sreen shot: 1 is for MBR, 2 is for GPT

    Click image for larger version. 

Name:	54737d1450754419t-windows-10-partition-installs-boot.jpg 
Views:	23 
Size:	64.7 KB 
ID:	54739
      My ComputerSystem Spec


 

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