Windows 10: Create Bootable USB Flash Drive to Install Windows 10  

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  1.    15 Feb 2018 #310

    dumble said: View Post
    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.
      My ComputerSystem Spec

  2.    15 Feb 2018 #311

    dumble said: View Post
    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 ComputerSystem Spec

  3.    15 Feb 2018 #312

    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 10:54.
      My ComputerSystem Spec


  4. Posts : 2
    Windows 10 Home
       03 Mar 2018 #313

    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 ComputerSystem Spec

  5. f14tomcat's Avatar
    Posts : 36,166
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)
       03 Mar 2018 #314

    Alex C said: View Post
    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 ComputersSystem Spec

  6.    13 Mar 2018 #315

    f14tomcat said: View Post
    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 ComputerSystem Spec

  7.    18 Mar 2018 #316

    How to make active@boot 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?
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  8. Brink's Avatar
    Posts : 32,238
    64-bit Windows 10 Pro build 18242
    Thread Starter
       18 Mar 2018 #317

    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 ComputersSystem Spec

  9.    09 Jun 2018 #318

    many thanks. excellent tutorial!!
      My ComputerSystem Spec

  10. Brink's Avatar
    Posts : 32,238
    64-bit Windows 10 Pro build 18242
    Thread Starter
       09 Jun 2018 #319

    I'm glad it could help Russell.
      My ComputersSystem Spec


 
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