Windows 8 and 8.1 Forums


Convert Physical Disk to Windows to Go by VHD, Boot Error

  1. #1


    Posts : 2
    Windows 8.1

    Convert Physical Disk to Windows to Go by VHD, Boot Error


    Hey guys, I'm stuck in this dilemma and I would appreciate any help that would come.
    So here's the thing,

    1. I have Windows 10 Pro, activated thanks to my activated windows 8.1 pro which I just updated. basically buying a new Win10 cd key is a no-go for me since Microsoft offers a free upgrade.

    2. I tried to do a clean install of windows 8.1 on a vhd in a USB. then from my Windows 8.1 to go, I tried to upgrade it to Windows 10 and got the following error:
    a.) Windows cannot be installed in a Virtual Disk.
    b.) Windows cannot be installed in a Windows to Go Drive.
    So it seems that the only way to go is to convert my physical disk to a vhd and turn it into windows to go which I did using the diskpart procedure I fished out of the internet.

    Create vdisk file=D:\Win2Go.vhd maximum=59000 I was going to install it in a 64 GB Flashdrive
    Select vdisk file=D:\Win2Go
    attach vdisk
    detail vdisk
    convert mbr
    create partition primary1
    format fs=ntfs label='Win2Go" quick
    Assign letter=L

    And so I have a 64GB blank VHD. Now Using AOMEI Partition Assistant, I copied my entire C: Drive partition to the Virtual Disk. then transferred my VHD to my 64GB Flashdrive.
    then I created boot entries for my Flashdrive using BCDBOOT.

    L:\>Windows\System32> BCDBOOT.EXE L:\Windows /s E: E: is my Flashdrive drive letter
    and it says that boot files have been updated.

    PROBLEM: When I boot from the Flasdrive, Windows Boot Loader is seen (the one with the windows logo and circling little circles XD) but then I always get the "INACCESSIBLE BOOT DEVICE" error!

    I tried updating the boot files of the VHD itself using BCDBOOT. I also tried to fixMBR, fixboot and rebuildbcd...
    Error still exists. What am I doing wrong? Sorry for the lengthy details, I'm still trying this stuff out thanks in advanced for the reply.

      My System SpecsSystem Spec

  2. #2


    Posts : 2
    Windows 8.1


    Well with a little bit more of nosing around, I found this great program that lets me convert my physical machine into a Windows-to-go drive. Its WinToUSB.
      My System SpecsSystem Spec

  3. #3


    Posts : 41
    Win7x64 Ult + Win 8.1 Pro


    Quote Originally Posted by Ryu View Post
    Well with a little bit more of nosing around, I found this great program that lets me convert my physical machine into a Windows-to-go drive. Its WinToUSB.
    Is this on VHD or on USB HDD?
      My System SpecsSystem Spec

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