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
    2024-10-04T19:18:39+00:00

    I'm seeing this post and people are saying it helps but I'm genuinely confused at what im supposed to be doing. Maybe I'm stupid

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  2. Anonymous
    2024-08-16T16:49:48+00:00

    Just switched to a new desktop (using Windows 11) and this worked. Thank you!

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  3. Anonymous
    2024-08-05T10:04:28+00:00

    Bro i love you. I tried all methods that was on epic games support site, i writed to their support, they send me to Microsoft support, even Microsoft couldn't help me, but your method helped, i really happy that i find your comment. Now i can play without any problem.

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  4. Anonymous
    2024-07-19T00:43:31+00:00

    Absolute lifesaver, I could feel my blood pressure rising trying to fix this

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