Diskpart question-convert from GPT to MBR on a flash drive

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  1. Posts : 985
    Windows 10 Home 21H1
    Thread Starter
       #21

    NavyLCDR said:
    If you want to insert all of the optional commands its:

    diskpart
    list disk
    select disk #
    clean
    convert mbr
    create part pri
    select part 1
    format fs=fat32 quick
    assign
    active
    exit
    exit

    Straight through. Nothing in between. No exiting diskpart in the middle. No removing or re-inserting the flash drive. No rebooting the computer. No stopping for a cigarette break. Just straight through. The optional commands are in bold. You should not need them.
    Thanks very much Navy. You definitely cant be any clearer than that The Diskpart method is the way forward for me now having always used the Media Creation Tool or Rufus method in the past. Hopefully Microsoft wont let the Windows 10 ISO get over 4gb because then there will be a problem with the Diskpart method with FAT32 not working with files over 4gb. I know its getting closer nowadays. I believe the Windows 10 ISO was around 3.5 GB the last time I checked
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  2. Posts : 17,252
    Windows 11 Pro
       #22

    sportsfan148 said:
    Hopefully Microsoft wont let the Windows 10 ISO get over 4gb because then there will be a problem with the Diskpart method with FAT32 not working with files over 4gb. I know its getting closer nowadays. I believe the Windows 10 ISO was around 3.5 GB the last time I checked
    They will split the install file (either install.esd or install.wim) into parts that are less than 4 GB and re-enable setup support for split .wim files. They have to maintain compatibility with FAT32 because there are too many computers that require the install media to be FAT32.

    Split a Windows image file (.wim) to span across multiple DVDs | Microsoft Docs
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  3. Posts : 985
    Windows 10 Home 21H1
    Thread Starter
       #23

    NavyLCDR said:
    They will split the install file (either install.esd or install.wim) into parts that are less than 4 GB and re-enable setup support for split .wim files. They have to maintain compatibility with FAT32 because there are too many computers that require the install media to be FAT32.

    Split a Windows image file (.wim) to span across multiple DVDs | Microsoft Docs
    That's good to know. As long as they don't make the Diskpart method obsolete for creating a bootable Windows 10 USB with the Windows 10 ISO...forcing people to use their Media Creation Tool. Id hate to have to go back to using the Media Creation Tool after the problems Ive recently had with that method that lots of other people are reporting as well. It used to be a reliable method for me but no longer. Even Microsoft Chat Support couldn't help sort the issues with it out.
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  4. Posts : 4,557
    Windows 10 Pro
       #24

    cereberus said:
    Not everybody uses 250GB SSDs.

    You get secure boot as well.

    If users have large drives (>2.2 TB, you need to be using UEFI if drive has OS. In fact, if any drive is >2.2 TB, you need to make it GPT.

    Just because you see no need for more than 4 Primary partitions, it depends if user decides to dual boot etc.

    Your comment is only based on your personal needs and cannot be considered to apply to all cases.
    Ha Ha you assumed wrong, the OP was making a bootable drive. All you ever do is add useless comments to posts and try to belittle people by quoting them and adding your smart comments, I`ve asked you twice now in 2 separate PM`s to never quote me again, it looks like I`ll have to talk to John, you need to grow up.

    Now I'm asking you so everyone can see it, please Do not ever quote me again. Thanks, Brian

    Who cares about Secure boot ? It has given so many people problems trying to install windows, it`s a useless function that's not needed.
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  5. Posts : 4,557
    Windows 10 Pro
       #25

    Sportsfan, what I mean by I don't install in UEFI is, I install to 1 partition on a MBR drive.
    Attached Thumbnails Attached Thumbnails Diskpart question-convert from GPT to MBR on a flash drive-pw-w10.jpg  
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  6. Posts : 983
    Windows 7/64 Professional
       #26

    UEFI or MBR. Pick which ever one you want.
    I have installed Windows 7 and Windows 10 both ways and they worked.

    I ended up using UEFI but again it's a choice. Secure boot and Fast Start cause problems so I just don't use them. Again, my choice.

    A little information, if one cares to read up on the subject.

    Some basics of MBR v/s GPT and BIOS v/s UEFI - Manjaro Linux

    ------------------------------------------------------------------------------------

    ***The best I can tell you Sportsfan148 is, it's your choice.***

    Jack
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  7. Posts : 4,557
    Windows 10 Pro
       #27

    Sportsfan, you can use this site to download any version of W10 you want, you don't have to use the MCT.

    TechBench by WZT (v4.1.1)
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  8. Posts : 985
    Windows 10 Home 21H1
    Thread Starter
       #28

    AddRAM said:
    Sportsfan, what I mean by I don't install in UEFI is, I install to 1 partition on a MBR drive.
    I see what you mean now. My laptop came set up with UEFI boot so Ive just left it that way. I don't know enough about the ins and outs of it anyway. That's some massive storage space you've got there. Makes my laptop look like a lightweight lol
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  9. Posts : 985
    Windows 10 Home 21H1
    Thread Starter
       #29

    Layback Bear said:
    UEFI or MBR. Pick which ever one you want.
    I have installed Windows 7 and Windows 10 both ways and they worked.

    I ended up using UEFI but again it's a choice. Secure boot and Fast Start cause problems so I just don't use them. Again, my choice.

    A little information, if one cares to read up on the subject.

    Some basics of MBR v/s GPT and BIOS v/s UEFI - Manjaro Linux

    ------------------------------------------------------------------------------------

    ***The best I can tell you Sportsfan148 is, it's your choice.***

    Jack
    Hi Jack. Ive had MBR/BIOS on older systems obviously. But Ive had a couple of laptops since UEFI came out and Ive always just stuck with that...no reason..probably just because its newer so I just assumed that that's the way things will go in the future
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  10. Posts : 985
    Windows 10 Home 21H1
    Thread Starter
       #30

    AddRAM said:
    Sportsfan, you can use this site to download any version of W10 you want, you don't have to use the MCT.

    TechBench by WZT (v4.1.1)
    Thanks for that. I've made a note of that link in case I ever have problems downloading a Windows 10 ISO using the Media Creation Tool
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