EOS-ERR error codes

These error codes are related to the MSI installer that is used when Epic Online Services are installed. Changing the drive the launcher is installed to can sometimes resolve the issue.

If this didn’t work reach out to Microsoft Support (Opens in a new tab) and include the error code number that you are receiving.

• You can find the number associated with the error code you receive in this list MsiExec.exe and InstMsi.exe error messages (for developers. (Opens in a new tab)