What is this 1MB FAT volume thats always created w/ install media?

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  1. Posts : 35
    Windows 10
       #1

    What is this 1MB FAT volume thats always created w/ install media?


    The install media I create is NTFS so idk what this is. Is it bootloader or something? Is it necessary?
    It says EUFI so is it secure boot information? If so, why only 1MB?
    What is this 1MB FAT volume thats always created w/ install media?-screenshot-11-.png

    22H2
      My Computer


  2. Posts : 23,475
    Win 10 Home ♦♦♦19045.4412 (x64) [22H2]
       #2

    TheCars said:
    The install media I create is NTFS so idk what this is. Is it bootloader or something? Is it necessary?
    It says EUFI so is it secure boot information? If so, why only 1MB?
    22H2


    You need to stretch out Disk Management before taking the screen shot, so we can read the information in both the top and bottom panes.
    Like this...

    What is this 1MB FAT volume thats always created w/ install media?-image1.jpg
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  3. Posts : 35
    Windows 10
    Thread Starter
       #3

    Ghot said:
    You need to stretch out Disk Management, so we can read the information in both the top and bottom panes.
    Like this...

    What is this 1MB FAT volume thats always created w/ install media?-image1.jpg
    I already formatted it. Didn't realize I'd need to provide another screenshot. My bad ig. Any guess atleast as to what it was?

    I see it said "Healthy (B---" though in the part that was visible on the top pane. You think it was boot?
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  4. Posts : 23,475
    Win 10 Home ♦♦♦19045.4412 (x64) [22H2]
       #4

    TheCars said:
    I already formatted it. Didn't realize I'd need to provide another screenshot. My bad ig. Any guess atleast as to what it was?


    I don't know. Assuming a GPT disk, then a normal Windows 10 or 11 install will look like this...

    What is this 1MB FAT volume thats always created w/ install media?-00000-default-windows-partitions.png




    You can check if your disk(s) are MBR or GPT, like this... no asterisk means they are MBR

    What is this 1MB FAT volume thats always created w/ install media?-image1.png
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  5. Posts : 35
    Windows 10
    Thread Starter
       #5

    Ghot said:
    I don't know. Assuming a GPT disk, then a normal Windows 10 or 11 install will look like this...

    Attachment 386241




    You can check if your disk(s) are MBR or GPT, like this... no asterisk means they are MBR

    What is this 1MB FAT volume thats always created w/ install media?-image1.png
    I'm referring to install media, as in what you'd make with media creation tool, not an installed operating system.
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  6. Posts : 43,212
    Win 10 Pro (22H2) (2nd PC is 22H2)
       #6

    The install media I create is NTFS
    Please state exactly how you are creating this so respondents have a better idea of to what you're referring. Thank you.
      My Computers


  7. Posts : 23,475
    Win 10 Home ♦♦♦19045.4412 (x64) [22H2]
       #7

    TheCars said:
    I'm referring to install media, as in what you'd make with media creation tool, not an installed operating system.



    I don't know. I wouldn't worry about it.

    I'm using the Media Creation Tool to make the Windows install media on a USB stick, right now
    It's at 80%

    Now itr's creating the media... it's at 60%


    Here's what it looks like. (It's a 256GB USB stick)

    What is this 1MB FAT volume thats always created w/ install media?-image1.png

    What is this 1MB FAT volume thats always created w/ install media?-image1.png

    What is this 1MB FAT volume thats always created w/ install media?-image1.png



    And this is what it looks like in File Explorer. You may or may not have the System Volume Information folder...

    What is this 1MB FAT volume thats always created w/ install media?-image1.png




    I started with an empty USB stick formatted NTFS. I got the Media Creation Tool here...

    https://www.microsoft.com/en-us/soft...load/windows10


    Just stick a USB stick into the computer, then run the Media Creation tool. It's pretty self explanatory.
    There's only two choices...

    1. Upgrade this computer
    2. Create USB, ISO etc. <---- with a 8GB or larger USB stick plugged in, choose this one.

    What is this 1MB FAT volume thats always created w/ install media?-image1.png




    Here's the tutorial...
    Create Bootable USB Flash Drive to Install Windows 10


    When you have your USB installation media made, here's the tutorial for a clean install of Windows 10...
    Clean Install Windows 10
    Last edited by Ghot; 22 Feb 2023 at 04:45.
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  8. Posts : 18,434
    Windows 11 Pro
       #8

    I'll bet it is Rufus.
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  9. Posts : 35
    Windows 10
    Thread Starter
       #9

    NavyLCDR said:
    I'll bet it is Rufus.
    Yes, after further testing, it is Rufus that makes it. And it only makes that second volume if I choose NTFS. Not there if I choose FAT32.

    Do you know it's purpose? Is it safe to delete?
    What is this 1MB FAT volume thats always created w/ install media?-screenshot-13-.png
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  10. Posts : 4,633
    several
       #10

    Do you know it's purpose?
    I think it is so that you can have large files on the ntfs partition.

    Many motherboards bios require fat32 for efi boot.
    Last edited by SIW2; 24 Feb 2023 at 09:47.
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