Tekken 4 was never officially released for PC. It was a PlayStation 2 and arcade exclusive. Because there is no native PC version, any "Tekken 4 PC Game" download link you find online is likely to be , a virus , or a scam .

You can find the emulator at the official PCSX2 site. 2. Official Modern Alternatives

If you are looking for a fighting game specifically built for PC, the newer entries in the series are available on Steam :

: Often available at a deep discount and has a massive character roster.