Windows 8 and 8.1 Forums


Upgrade Windows 8 Installed on a USB drive

  1. #1


    Posts : 8
    Windows 8

    Upgrade Windows 8 Installed on a USB drive


    Does anybody know how can this be done?

      My System SpecsSystem Spec

  2. #2


    City of Burj Khalifah
    Posts : 273
    8 Release Preview, 7 Home Premium


    This two links might help you for installation and update your BIOS before installation.

    Clean Install - Windows 8

    Windows 8 To Go - Setup on a USB Flash Drive or USB Disk

    Let us know once done.
      My System SpecsSystem Spec

  3. #3


    Posts : 5,707
    Windows 8.1 Pro


    It's a lengthy process, I know, I've done it. It takes about an hour and a half for the install itself and some prep time before hand. The above links should work for you.

    Honestly though, using a USB 2.0 flash drive or hard drive can suffice for light tasks, but not so great when dealing with constant program installation or saving HUGE files to it.

    I haven't tried using a USB 3.0 flash drive yet, but I would think that should be faster since the flash can run faster than a USB 2.0 built flash.
      My System SpecsSystem Spec

  4. #4


    Posts : 5,707
    Windows 8.1 Pro


    I also want to mention that from my experience, boot time actually doesn't take that long. It's about the same boot time as a normal hard drive system with USB 2.0.
      My System SpecsSystem Spec

  5. #5


    Posts : 8
    Windows 8


    Thank you, both! I've managed pretty quickly to install it, but I don't have the consumer release and was wondering whether I could somehow update this one without doing a clean install.

    Is it possible?
      My System SpecsSystem Spec

  6. #6


    City of Burj Khalifah
    Posts : 273
    8 Release Preview, 7 Home Premium


    Quote Originally Posted by Dinora View Post
    Thank you, both! I've managed pretty quickly to install it, but I don't have the consumer release and was wondering whether I could somehow update this one without doing a clean install.

    Is it possible?
    Better to download this one Windows 8 "Release Preview" Released, and you need to make a clean installation to avoid error from Win7 OS or you might get errors along the way you use Win8 OS. Follow this link Clean Install - Windows 8 to have a smooth set up.

    Inform us once done.
      My System SpecsSystem Spec

  7. #7


    Posts : 8
    Windows 8


    Thank you, I know it is better, but it is not the point.
      My System SpecsSystem Spec

  8. #8


    City of Burj Khalifah
    Posts : 273
    8 Release Preview, 7 Home Premium


    Quote Originally Posted by Dinora View Post
    Thank you, I know it is better, but it is not the point.
    Check this guide without clean installation https://www.eightforums.com/tutorials...ndows-8-a.html
      My System SpecsSystem Spec

  9. #9


    Hmmm. For each new Win8 release, the installer hasn't presented "upgrade install" as an option (to go from Developer Preview to Customer Preview, or from CP to Release Preview). I've been FORCED to do a re-install each time (though it does preserve the Windows directory as "Windows.old" as per earlier installer behavior), I've yet to see options for saving settings, preferences, or applications. Am I missing something?

    --Ed--
      My System SpecsSystem Spec

  10. #10


    Portsmouth Hants
    Posts : 772
    Windows 8.1 Pro with Media Center


    Ed, there are apparently several different ways to install Windows 8.

    Apart from directly from the internet from the Microsoft site for the Windows 8 Release Preview Setup
    Download Windows 8 Release Preview

    As an Upgrade:

    https://www.eightforums.com/tutorials...ndows-8-a.html

    In this installation, setup is run from within Windows 7 (or 8) using an Iso file from the above Microsoft page.

    For a clean install, booting from the same install media on bootable DVD or USB is required:

    Clean Install - Windows 8

    Another way does not require the setup file at all. - The way I do it now is to use Dism.exe, but before I used Imagex.exe to unpack the install.wim directly to the partitioned and formatted target drive or virtual hard disk.

    Windows 8 To Go - Setup on a USB Flash Drive or USB Disk

    It has the benefit of being quick, and can also be used to install Windows 8 to USB external disks and Thumb drives for portable installations.

    I never upgrade - waste of a good system - or if it is not good, better to start from scratch!
      My System SpecsSystem Spec

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Upgrade Windows 8 Installed on a USB drive
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