EOS-ERR error codes
EOS-ERR codes are related to the MSI installer used when Epic Online Services are installed.
Try installing the Epic Games Launcher to a different drive:
- Uninstall the current Epic Games Launcher.
- Download a fresh installer from epicgames.com. (Opens in a new tab)
- During installation, select a different drive as the install location.
For further troubleshooting, refer to I can't install the Epic Games Launcher.
If the issue persists, contact Microsoft Support (Opens in a new tab)and include your specific EOS-ERR error code number.