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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  2. Anonymous
    2024-07-17T01:25:21+00:00

    BRO I HAVE BEEN SEARCHING FOR 2 DAYS AND I FOUND NOTHING AND I WAS JUST GOING TO SLEEP BUT I FOUND YOUR ARTICLE AND IT WORKED

    THANK YOU SO MUCH

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  3. Anonymous
    2024-07-03T21:23:22+00:00

    Please help me understand why mine won’t work.

    I did all the steps as well and I created a new folder under Epic Game named “Epic Online Services” however, I still don’t see a folder named “EpicOnlineServices.msi.” Should I create a folder named “EpicOnlineServices.msi” or should it have created it on it’s own?

    Also if I go to control panel, I do see “EpicOnlineServices” but lets say I try to uninstall it, it says “The feature you are trying to use is on a network source that is unavailable.” It also says “The file ‘C:\Program Files (x86)\Epic Games\Launcher\Portal\Extras\EOS\’ is not a valid installation package for the product Epic Online Services. Try to find ‘EpicOnlineServices.msi’ in a folder from which you can install Epic Online Services.” I have searched my entire PC and cannot find a “EpicOnlineServices.msi” folder.

    So let’s say the folder doesn’t exist. It still shows it in my control panel, yet I can’t uninstall it. Until I find or create the “EpicOnlineServices.msi” folder, my Epic Online Services won’t install.

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  4. Anonymous
    2024-06-12T06:49:57+00:00

    A mi me pasa que se empieza a descargarse y cuando esta por terminar todo va de reversa

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    4 people found this answer helpful.
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  5. Anonymous
    2024-05-26T17:46:48+00:00

    Thank I Fix My Bug .

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