Many games on Steam or the Epic Games Store launch this during the first setup.
When you run this setup, it typically checks for and installs the following: ue4prereqsetup-x64.exe
| Flag | Effect | |------|--------| | /quiet or /S | Silent installation (no UI, no prompts) | | /veryquiet | No output whatsoever | | /log=[path] | Writes detailed installation log to specified file | | /uninstall | Removes the UE4 prerequisites (rarely used) | Many games on Steam or the Epic Games