Never download a "GTA 5 launcher.exe" from unofficial or unknown sources. Obtain the game and its launcher from official stores, verify digital signatures and file integrity, and treat any third-party executables as potentially malicious unless they come from widely trusted, verifiable communities.
If you're directly looking for the game's executable (gta5.exe) to launch the game: gta 5 launcher exe download
Do not download the "GTA5.exe" or "Launcher.exe" from any third-party websites (e.g., OceanofGames, SteamUnlocked, random file hosting sites). These files are often: Never download a "GTA 5 launcher
Fix: You don't need a new EXE; you need to reinstall the launcher (not the whole game). Do not download the "GTA5