: Right-click game > Properties > Installed Files > Verify integrity of game files .
: Click the three dots next to the game > Manage > Verify . 4. Technical & Driver Fixes Fix not launching/Crash on Startup/Black screen | Hitman 3 Hitman 3 Executable Not Found Direct3d 12 High Quality
: Right-click the game > Properties > General > Launch Options . Type -dx11 or --dx11 . : Right-click game > Properties > Installed Files
: Navigate to your installation folder, typically: SteamLibrary\steamapps\common\Hitman 3\Retail Epic Games\Hitman3\Retail Hitman 3 Executable Not Found Direct3d 12 High Quality
If your hardware supports DirectX 12 but lacks specific feature levels (like 12_2), the game may fail to launch in "High Quality" mode. Forcing DX11 is a reliable workaround.
Sometimes the "Executable Not Found" error is literal—your antivirus has blocked or deleted the file.
