Windows 10: DISM error 1638

Discus and support DISM error 1638 in Windows 10 Gaming to solve the problem; Hi!So I'm on Windows 11 right now and I want to roll back to Windows 10, so in the Command Prompt I typed a command which reads: "DISM /Online... Discussion in 'Windows 10 Gaming' started by WaffleKing478, Dec 31, 2021.

  1. WAFFLEKING478
    WaffleKing478 Win User

    DISM error 1638


    Hi!So I'm on Windows 11 right now and I want to roll back to Windows 10, so in the Command Prompt I typed a command which reads: "DISM /Online /Initiate-OSUninstall /Quiet". Instead, I get an error that says Error: 1638Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.When I go to the Control Panel, I don't know what I need to uninstall or what I have to do to get rid of this error.Any help is appreciatedThanks!

    :)
     
    WaffleKing478, Dec 31, 2021
    #1
  2. STEPHANIE SAL
    Stephanie Sal Win User

    DISM - Parameter "Cleanup-Image" is not known (error 87)

    Hello Eric,

    To troubleshoot your concern, we suggest that you run DISM Restore Health command. Refer to the steps provided below:

    • Open Command Prompt (Administrator).
    • Type the following command:
    DISM /Online /Cleanup-Image /RestoreHealth

    3. Press Enter.

    Let us know how it goes.

    Thank you.
     
    Stephanie Sal, Dec 31, 2021
    #2
  3. REJZOR
    RejZoR Win User
    How to get damn DISM to work?

    Thx guys, I'll compress this data into a blog post. For all the so called guides I've read, not a single one mentioned it has to be WIM file (some listed even ESD which clearly doesn't work) or that certain ISO images don't work with DISM.

    After I've done DISM thingie, SFC also managed to repair stuff. Which is what I've needed here.
     
    RejZoR, Dec 31, 2021
    #3
  4. ZBOOK
    zbook Win User

    DISM error 1638

    Programs not working

    In post 26 there were steps listed to fix the operating system corruption.
    Are you able to follow them?
    In post 29 was the suggested dism repair command.
     
    zbook, Dec 31, 2021
    #4
Thema:

DISM error 1638

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