THIS IS PATCHED, IT DOES NOT WORK ANYMORE! Download Games for Windows LiveDownload here.
Once you’ve downloaded and installed Game for Windows. Download a game called Tinker, looks like this.
Now download and install tinker now go to the downloads tab and click on Tinker now you will get something that looks like this, press on view game key.
You can use that key on Halo 2 PC. Edit: PLAY THE TINKER GAME ONLINE THEN RETRIEVE THE LIVE KEY.THERE YOU GO HAVE FUN.
When Halo 2 asks for a serial key at setup put in one of these below9BTG3-8FFTD-JBCP3-T4YRM-94RKHPRQHY-W86MM-VRWPM-3FM4B-6QGWC.
Now one you get in game and it asks for a key put in the one you got from Tinker or Gameroom.
One game I’ve had success getting keys from is Gears of War for the PC.I usually use that key on Halo 2. Also this does not work for games after the game Section 8.
This does not work on newer GFWL games.
If you need an iso for Halo 2 msg me.
Here is a very easy way of getting keys for Halo 2