Create Bootable USB Flash Drive to Install Windows 10  

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  1. sportsfan148's Avatar
    Posts : 971
    Windows 10 Home 202H
       #290

    NavyLCDR said:
    Rufus is a waste of time.

    Create a Bootable USB Flash Drive

    Make sure to use FAT32 instead of NTFS:

    To create a bootable USB flash drive

    Insert a USB flash drive into a running computer.

    Open a Command Prompt window as an administrator.

    Type diskpart.

    In the new command line window that opens, to determine the USB flash drive number or drive letter, at the command prompt, type list disk, and then click ENTER. The list disk command displays all the disks on the computer. Note the drive number or drive letter of the USB flash drive.

    At the command prompt, type select disk <X>, where X is the drive number or drive letter of the USB flash drive, and then click ENTER.

    Type clean, and the click ENTER. This command deletes all data from the USB flash drive.

    To create a new primary partition on the USB flash drive, type create part pri, and then click ENTER.

    To select the partition that you just created, type select part 1, and then click ENTER.

    If your server platform supports Unified Extensible Firmware Interface (UEFI), you should format the USB flash drive as FAT32 rather than as NTFS. To format the partition as FAT32, type format fs=fat32 quick, and then click ENTER.

    Type active, and then click ENTER.

    Type exit, and then click ENTER.

    When you finish preparing your custom image, save it to the root of the USB flash drive.

    Then just mount the Windows installation ISO file and copy all the files and folders from the mounted ISO file to the USB flash drive and you're done.
    Hi again mate. You've been helping me on one of my posts with this. Thanks again. Ive listed all of your Diskpart commands and I'm going to use your exact method to create a bootable Win10 USB flash drive at the weekend. I'm then going to use the Media Creation Tool to download the Windows 10 ISO.
    A couple of questions if you don't mind me pestering you again so that I'm sure I perform the whole procedure correctly. At the end of your instructions you say "When you finish preparing your custom image, save it to the root of the USB flash drive." What exactly does that mean?
    You then go on to say "
    Then just mount the Windows installation ISO file and copy all the files and folders from the mounted ISO file to the USB flash drive and you're done
    "
    I'm unsure how to follow those two instructions. Would you mind explaining in detail for a novice what exactly you mean in both of those instructions.
    I'm not familiar with mounting ISO's..so its a learning curve for me..Sorry
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  2. Posts : 11
    win8.1
       #291

    Creating a EUFI win10 USB with RUFUS you have to pick NTFS and not FAT32. The latest windows installation media contain a install.wim file that is bigger than 4GB and hence not supported by the FAT32 filesystem. You will never be able to create a eufi win10 USB on fat32 with latest windows10 release (for example the fall creator updated windows 10 iso's)

    However, RUFUS DOES SUPPORT EUFI BOOT FROM NTFS, so just choose NTFS in RUFUS
    Source: GitHub - pbatard/uefi-ntfs: UEFI:NTFS - Boot NTFS partitions from UEFI
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  3. cereberus's Avatar
    Posts : 12,014
    Windows10
       #292

    dumble said:
    Creating a EUFI win10 USB with RUFUS you have to pick NTFS and not FAT32. The latest windows installation media contain a install.wim file that is bigger than 4GB and hence not supported by the FAT32 filesystem. You will never be able to create a eufi win10 USB on fat32 with latest windows10 release (for example the fall creator updated windows 10 iso's)

    However, RUFUS DOES SUPPORT EUFI BOOT FROM NTFS, so just choose NTFS in RUFUS
    Source: GitHub - pbatard/uefi-ntfs: UEFI:NTFS - Boot NTFS partitions from UEFI
    This is not true in most situations.

    The install.wim is only around 3+GB for a 64 bit iso.

    The only time an install.wim may be bigger than 4GB is if you customise it or maybe if you try and create a dual 32/64 bit installer which hardly anbody ever does.

    As others say, download iso, mount as a drive, copy files to a fat32 drive, and mark partiton as active if legacy bios. This can be done using diskpart or disk management gui.

    There is no need to use Rufus at all.
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  4. Posts : 358
    Windows 10
       #293

    dumble said:
    Creating a EUFI win10 USB with RUFUS you have to pick NTFS and not FAT32. The latest windows installation media contain a install.wim file that is bigger than 4GB and hence not supported by the FAT32 filesystem. You will never be able to create a eufi win10 USB on fat32 with latest windows10 release (for example the fall creator updated windows 10 iso's)

    However, RUFUS DOES SUPPORT EUFI BOOT FROM NTFS, so just choose NTFS in RUFUS
    Source: GitHub - pbatard/uefi-ntfs: UEFI:NTFS - Boot NTFS partitions from UEFI
    The size of the ISO for 1709 that I downloaded with Media Creation Tool is 3.731.392 KB, or 3.6 GB.
      My Computer

  5. Akeo's Avatar
    Posts : 29
    Windows 10 x64
       #294

    Actually, you can find a few official Microsoft ISOs with >4GB install.wim here and there.

    For instance, en_windows_10_multiple_editions_version_1703_updated_june_2017_x64_dvd_10725021.iso, which was the last MSDN rolling update of 1703 (en-US) before FCU has an 4.39GB install.wim. So, while Microsoft does its best to try to keep their retail ISOs' install.wim under 4GB, they don't always manage it and you may run into the >4GB headache even with an unaltered official ISO.

    This has been going on for a few years (for instance one of the official Windows 8 Preview ISOs from Microsoft also had a >4GB install.wim), and, logically, it's only expected to become more common.

    Now, the ISOs from the Media Creation Tool (which are not the same as MSDN/retail) are reconstructed from a bunch of downloaded files, so they are a bit special, and their install.wim/.esd is (for now) much smaller than 4GB. However, one drawback from sharing MCT ISOs is that, since they are uniquely built, you can't go around and compare SHA-1's to make sure they weren't maliciously altered if someone shares one with you, as you can do with the retail/MSDN ISOs...
    Last edited by Akeo; 15 Feb 2018 at 09:54.
      My Computer


  6. Posts : 2
    Windows 10 Home
       #295

    Hi,

    does the media creation tool create a fully up to date ISO image of windows or would i need to spend the next few days checking for/download and installing updates after the clean install?
      My Computer

  7. f14tomcat's Avatar
    Posts : 53,139
    Multi-boot Windows 10 - RTM, RP, Beta, and Insider
       #296

    Alex C said:
    Hi,

    does the media creation tool create a fully up to date ISO image of windows or would i need to spend the next few days checking for/download and installing updates after the clean install?
    It creates the base OS for the version/language/architecture you choose. In the case of the Fall Creators Update (current public release), it will create versions 16299.15. After install, there will be cumulative updates, etc., to get it up to level 16299.248.
      My Computers

  8. cereberus's Avatar
    Posts : 12,014
    Windows10
       #297

    f14tomcat said:
    It creates the base OS for the version/language/architecture you choose. In the case of the Fall Creators Update (current public release), it will create versions 16299.15. After install, there will be cumulative updates, etc., to get it up to level 16299.248.
    Minor clarification but base iso is now 16299.125.
      My Computer

  9. Matthew Wai's Avatar
    Posts : 5,084
    Windows 10 Home 20H2
       #298

    How to make [email protected] disk bootable on uefi/gpt? Solved - Windows 10 Forums
    The above method works at my end, so could it be option four in addition to the three options mentioned in this tutorial?
      My Computer

  10. Brink's Avatar
    Posts : 56,333
    64-bit Windows 10 Pro for Workstations build 21359
    Thread Starter
       #299

    Hello Matthew, :)

    That method will work as long as none of the installation files you're copying over isn't above the 4 GB file size limit of FAT32.

    Usually, it's the install.wim or install.esd file that could break that limit.
      My Computers


 
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