If you see websites offering a "PC download" for this specific title from 2008, be extremely cautious. These are usually:
Early builds that often don't work correctly. 🎮 How to play Gears of War 2 today TГ¶ltse le a Gears of War 2 PC-jГЎtГ©kot 2008
Fake installers designed to harm your computer. Phishing scams: Sites trying to steal your personal data. If you see websites offering a "PC download"
Since there is no native PC version, here are your legal options: Töltse le a Gears of War 2 PC-játékot 2008
If you want to play the series on your computer, these titles have official PC versions: (Remake of the first game) Gears 4 Gears 5 Gears Tactics
You can stream the game to your PC via Xbox Cloud Gaming .