Use ISO image to upgrade windows 10 1809 to 21h2

Discussion in 'Windows Guest OS Discussion' started by HeoH, Jun 7, 2022.

  1. HeoH

    HeoH Bit Poster

    Messages:
    2
    Hi,

    I inserted 21H2 ISO image, and double click setup.exe to upgrade from 1809 to 21H2?
    When I double click setup.exe in my ISO image, it tries to clean install 21H2 not upgrade.
    My personal files and apps are gone.
    Is it possible to use ISO image to upgrade windows?
     
  2. GampaA@Parallels

    GampaA@Parallels Staff Member

    Messages:
    439
    Hello HeoH, install directly latest build windows from installation assistance and check. Thanks.
     
  3. McallenT@Parallels

    McallenT@Parallels Staff Member

    Messages:
    209
    Hello @HeoH, You need to run the ISO file from inside the windows to upgrade windows. Thanks, Parallels Team.
     
  4. HeoH

    HeoH Bit Poster

    Messages:
    2
    Hi,

    You said "run ISO file from inside the windows", I have click ISO setup.exe file in windows desktop folder. Is it right?
    or is there other way to run ISO file from inside the windows?
     
  5. McallenT@Parallels

    McallenT@Parallels Staff Member

    Messages:
    209
    Hello, Yes, if you run it from the Windows desktop folder, you will be able to upgrade. Thanks, Parallels Team.
     

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