If your current GTA5.exe is missing or corrupted, do not download a replacement from unofficial websites, as these often contain malware. Instead, use the built-in verification tools in your launcher: How to DOWNLOAD GTA V FOR PC THE EASY WAY 2024
: Purchase the game and use the Steam library to install it. Steam automatically downloads the verified executable and all necessary game data.
The only way to ensure you have a verified and safe version of is to download it through an official game launcher.