Place D3D9.dll in the directory that contains FalloutNV.exe. Download D3D9.dll from MediaFire or a similar source.
Start the installer in compatibility mode for Windows XP SP3 and as an Administrator. Please make sure youre running the latest version of Android - to do this: To check for and install available Android updates: Open your devices Settings app. Operating System: Windows 7 Ultimate 32-bit (6.1, Build 7600) (7600.win7_gdr.101026-1503) From the PC Gaming Wiki's 'Fallout New Vegas - Game Crashes Randomly' article: D3D9.dll Replacement.