Since there is no "Install.exe" from Bandai Namco, you’ll need to follow these steps:
The industry standard for playing PS2 games on PC is . It’s open-source, highly stable, and allows you to upscale the game to 4K resolution, making Tekken 4 look better than it ever did on original hardware. Tekken 4 Download PC Game
If you own the original disc, you can use a disc drive to "rip" the ISO to your PC. Since there is no "Install