There are two primary reasons why this file disappears from your system:
Downloading the file is a common search for users encountering errors while trying to launch certain games, most notably pirated versions of The Sims 4 . This specific file is not a standard Windows system component but rather part of an "Origin emulator" created by the scene group CODEX to bypass digital rights management (DRM). What is OrangeEmu64.dll? orangeemu64.dll download
Most commonly, this DLL is linked to: