The safest legal way to play the game on PC is to buy a used physical copy on eBay or from a local retro game store.
If you cannot find a physical disc, some internet history and abandonware archives host the original, unmodified ISO files of the game for preservation purposes. While still a legal grey area, downloading clean, untouched ISO files from established digital preservation archives is significantly safer than downloading compressed executable repacks from random search engine results. Play the 2012 Reboot pzn nfs most wanted download
Download the official from a reputable archive site. The safest legal way to play the game