I have Halo 2 for Windows Vista and I'm considering upgrading to Windows 7.
Will Halo 2 run on Windows 7, or is it Windows Vista only?
EDIT: An update on this post: I was not able to make it work on a Windows 7 system (as predicted by the Bungie post linked by @Sean). However, it installed and ran perfectly with no problems on a new Windows 8 laptop.
Best Answer
Yes, though there is great potential for installation misery. The top entry of the official Bungie FAQ:
If you do run into issues, try installing the latest patches (W7, GFWL, and H2) or these workarounds.