Windows 8.1 Uefi install greater than 4gb

Discussion in 'Windows 8' started by gfmate123, Jan 22, 2014.

  1. gfmate123

    gfmate123 MDL Novice

    Jan 21, 2014
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    i am using one of murphy78's windows 8.1 iso how would i install in uefi
    when it is bigger than 4gb?
     
  2. EFA11

    EFA11 Avatar Guru

    Oct 7, 2010
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    use a bigger USB drive. USB drive needs to be bootable and FAT 32, then extract the entire iso to the drive.
     
  3. gfmate123

    gfmate123 MDL Novice

    Jan 21, 2014
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    i have a bigger usb drive but i thought uefi limits install to only 4gb?
    i tried using rufus to make it a uefi boot drive but it did not work it said iso is bigger than 4gb?
     
  4. EFA11

    EFA11 Avatar Guru

    Oct 7, 2010
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    was it fat 32? I install using a 64gb flash drive all the time.
     
  5. EFA11

    EFA11 Avatar Guru

    Oct 7, 2010
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    oh my bad, I was thinking it wouldnt fit on a dvd wasnt thinking wim lol
     
  6. gfmate123

    gfmate123 MDL Novice

    Jan 21, 2014
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    looks complicated abbodi lol any easier ways of doing this?
     
  7. SpeedDream

    SpeedDream MDL Addicted

    Feb 20, 2012
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  8. chinobino

    chinobino MDL Member

    Jul 28, 2009
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    #10 chinobino, Jan 23, 2014
    Last edited by a moderator: Apr 20, 2017
    How close is the WIM image to 4 GB?

    You may be able to compress the WIM into an ESD (one way process, so keep a copy of the original WIM file) using DISM to get it below 4GB, using the following command;

    Code:
    dism /Export-Image /SourceImageFile:"install.wim" /SourceIndex:1 /DestinationImageFile:"install.esd" /Compress:recovery
    Some more info in this thread.
     
  9. abbodi1406

    abbodi1406 MDL KB0000001

    Feb 19, 2011
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    I think murphy78's releases are already in ESD format
     
  10. HALIKUS

    HALIKUS MDL Addicted

    Jul 29, 2009
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    Boot on a fat32 usb with efi to efi mode but don't have an install.wim in sources. On any other NTFS drive\partition\hdd\cd\dvd\usb have the sources\ directory with boot.wim, install.wim and setup.exe and the Windows setup will see the wim.

    An easy approach i use is boot to a 50 meg fat32 2nd partition on my USB to rEFInd with the ntfs.efi driver that scans the other partition (ntfs) for bootloaders. From there, boot the corresponding efi bootloader on the ntfs partition and run setup like normal.
     
  11. Superfly

    Superfly MDL Expert

    Jan 12, 2010
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    Your posts are always informative.. but geez.. it's like following a Kimi Raikkonen interview.. dot-dot-dash... :biggrin:
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
  12. HALIKUS

    HALIKUS MDL Addicted

    Jul 29, 2009
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    haha, i completely agree. I'm burnt out alot and sometimes just don't have the time or energy for a proper step by step reply. I really should make them a tad more legible though ;)