• Upgrading Windows 10 v1607 to v21H2 – How??

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    • This topic has 14 replies, 5 voices, and was last updated 1 week, 2 days ago by I’m not a Robot.
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    #2467578

    Hi,

    I am attempting to bring a decent top-end HP desktop machine into the most recent age of Windows 10, namely v21H2.
    Currently the machine is running Windows 10 Pro v1607 64bit and will not accept any 21H2 ISO install on bootup or any install using the setup file in the upgrade install package.

    Is there some pre-requisite for getting from 1607 to 21H2, if so what might it be and how does one go about doing it.
    I have a bunch of DVD’s with various back issues of Windows 10 1703  / 1909 / 2004 / 21H1 plus latest 21H2.

    Doing a new clean install is not a good option as this is a business machine in daily use by a relative who is a design and build achitect with many years of  structural plans, drawings and important heritage business data stored on the machine plus complex draughting / drawing applications none of which we can afford to mess-up or lose.

    Can anyone advise on the route and procedure for getting safely from Windows 10 1607 to 21H2 ??

    Many thanks in advance for any assistance offered.

    Best regards,

    Gordon (UK)

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    • #2467581

      Currently the machine is running Windows 10 Pro v1607 64bit and will not accept any 21H2 ISO install on bootup or any install using the setup file in the upgrade install package.

      Error message?

      Windows 11 Pro version 22H2 build 22621.382 (group ASAP) + Microsoft 365

      • #2467747

        Error  message ?

        Just says you can’t upgrade Windows 10 using ISO USB or DVD. Copy installation files and run from inside Windows . . . or words to that efffect.

        Copying installation files and running setup does not work either.

    • #2467584

      Currently the machine is running Windows 10 Pro v1607 64bit and will not accept any 21H2 ISO install on bootup or any install using the setup file in the upgrade install package.

      What sort of license and version does you friend have ? Enterprise / LTSB ?
      Have you tried Windows 10 Update Assistant

      Your friend should create a full image backup on an external USB HDD before starting any install.

      • #2467598

        Pro was mentioned.

        Windows 11 Pro version 22H2 build 22621.382 (group ASAP) + Microsoft 365

        1 user thanked author for this post.
      • #2467748

        Standard Windows Professional License

      • #2467763

        Use Windows Update Assistant………….
        That’s how I ccreated the ISO DVD and USB install package in the first place.

    • #2467647

      The VERY FIRST thing you should do is make a full disk image, followed by file/folder backup of the data. Along with this, you need a bootable Windows Recovery CD/USB and a bootable Rescue disk made with the backup/imaging software.
      If you don’t, you may find you have lost everything if the upgrade fails.

      1 user thanked author for this post.
    • #2467760

      I have all five, USB / DVD ISO’s, Data backup, clone of full system  on USB HDD and Windows 10 – 1607 Rescue / Recovery DVD

      Is there not some other pre-requisite like service stack update(s) or other stuff to add / install when making the quantum leap from W10 1607 to 21H2 being as Windows Kernal is different in Win 10 2004 and above?

      Where do we go next?

    • #2467773

      Use Windows Update Assistant

      Don’t create, use the tool to upgrade online !!

    • #2467853

      There has been more than two years of Windows system change and the upgrade system cannot or may not cope with the differences greater than that. The incremental jumping method could also work for you, there was success upgrading from 1607 to 1809v2 (the good October release).

      Please acquire copies of all of the computer’s device drivers available to reinstall in case there might be issues afterward.

      HTH

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