EOS-ERR-1603 Epic Online Services install issue [Solution]

Anonymous
2023-03-06T23:26:39+00:00

I wanted to share a fix to the EOS-ERR-1603 error that some experience with the Epic Games Launcher and Online Services Install that I haven't seen elsewhere and I hope might be useful.

I followed all of the steps detailed here with no luck: https://www.epicgames.com/help/en-US/epic-games-store-c5719341124379/error-codes-c5719359691291/eos-err-1603-a5720340831259

Various forums suggested the issue may be due to installing the launcher on a different drive, but mine is in the default location on C:\ so no joy with that either.

However I noticed in the registry there were entries pointing to "C:\Program Files (x86)\Epic Games\Epic Online Services" but the deepest folder didn't exist in my installation, so I created the folder "Epic Online Services" under the "Epic Games" folder:

I then re-ran the installer as described in step 6 on the Epic page linked to above, which in my case is C:\Program Files (x86)\Epic Games\Launcher\Portal\Extras\EOS\EpicOnlineServices.msi and the installer ran successfully fixing the issue.

Hope this helps someone.

Windows for home | Windows 11 | Gaming

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  1. Anonymous
    2024-04-12T09:16:05+00:00

    THANK YOU THANK YOU, This issue was driving me crazing spending 6+ hours trying to figure this out before I found this solution.

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    1 person found this answer helpful.
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  2. Anonymous
    2024-04-14T06:46:12+00:00

    You are GOD!!!!

    I love you!!

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  3. Anonymous
    2024-04-19T15:54:03+00:00

    I followed the instructions and they fixed the issue and now all my games are gone.

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  4. Anonymous
    2024-04-30T08:56:41+00:00

    I tried this but when I click on the installer, it starts installing but then comes up and error that says: Error writing to file: C:\Program Files (x86)\Epic Games\Epic Online Services\EpicOnlineServices.exe. Verify that you have access to that directory.

    I have checked everything and I do have access to the Epic Online Services, as I am the PC administrator, so why isn't this working? Has anyone else had this issue?

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    4 people found this answer helpful.
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  5. Anonymous
    2024-05-16T22:36:03+00:00

    Thank YOU. Finally an actual solution!!!

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