How do I update from 1809 to 1903 using an ISO on a USB? Solved

  1.    #1

    How do I update from 1809 to 1903 using an ISO on a USB?


    Yeah, this is basic and I =think= I know what to do, but...assume and all that. :)

    Going here: Create Bootable USB Flash Drive to Install Windows 10 it's pretty straightforward on how to create an install ISO. (I've used this technique before when doing reinstalls. Thanks.)

    How would I use that ISO on a USB stick to perform an update from 1809 to 1903, and NOT do a repair install or reinstall?

    Am I overthinking this?

    (This is because the update, despite saying it's ready to be downloaded and installed, does not work. It rolls back to 1809. I've since updated my laptop's BIOS and have also been told installing from a USB is less likely to fail.)

    Thanks,
    Ken
      My ComputerSystem Spec

  2. Bree's Avatar
    Posts : 11,930
    10 Home x64 (1903) (10 Pro on 2nd pc)
       #2

    iamc3k said: View Post
    How would I use that ISO on a USB stick to perform an update from 1809 to 1903, and NOT do a repair install or reinstall?
    A repair install is just an 'upgrade' to the same version as you already have (1809 to 1809). The upgrade to 1903 from 1809 works exactly the same way.

    There is (at present) a minor bug in the upgrade process for 1903, it cannot perform the upgrade if any usb drive is attached. This can make it awkward to upgrade using a usb! The simple workaround is to copy the install files from the usb to a temporary folder on the hard drive then start the upgrade from there.

    When you say 'ISO on a USB stick' do you mean you have put the actual .iso file on a usb? Or do you mean you have made the bootable usb install media?

    If you have copied the .iso file to a usb (which would have to be ntfs or exFAT formatted, it's too big for Fat32 to handle) then just copy the .iso file to the PC. Remove the usb then mount the ISO and run Setup.exe from the root of the drive to start the upgrade.

    If you have a USB with the install media on it, then create a temporary folder on the PC's internal drive, copy all files and folders from the usb to the temporary folder. Remove the usb and run Setup.exe from that folder.


    Should the upgrade still fail, upgrading from the ISO in this way provides two error codes: a result code and an extend code (unlike windows update or the update assistant which only give a result code). Note both codes, they can help to determine what caused the failure.
      My ComputersSystem Spec

  3.    #3

    When you say 'ISO on a USB stick' do you mean you have put the actual .iso file on a usb? Or do you mean you have made the bootable usb install media?

    I mean to use the Media Creation Tool from MS and create an ISO on a USB, as shown here: Download Windows 10 ISO File

    Thanks for pointing out the USB issue. I'd forgotten about that. So, yeah, putting the ISO on the laptop instead of a USB would be a better idea!

    Thanks.
      My ComputerSystem Spec

  4. ThrashZone's Avatar
    Posts : 5,065
    3-Win-7Prox64 2-Win10Prox64
       #4

    Hi,
    Yeah just copy and paste right click the iso and use mount
    Right click setup.exe and run as administrator.
    Wait.
      My ComputersSystem Spec

  5. Ztruker's Avatar
    Posts : 8,472
    Windows 10 Pro X64 1903 189362.439
       #5

    The USB problem has been resolved though it may take up to 48 hours for it to propogate to all download servers:

    Known and Resolved issues for Windows 10 May 2019 Update version 1903
      My ComputersSystem Spec


 

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