First stale, I will specify that I hold legitimately purchased window Vista Home premium and Halo 2 PC. I have to reinstall Vista just this minute after a unrelated mishap, and thus stipulation to reinstall all my programs. But when I tried to reinstall Halo 2, the response I started getting be "Files are missing or diluted within the installation directory. Some earth-shattering files required to run this spectator sport are missing in the installation directory"
I get no perception how to address that, and would appreciate any give a hand.
Answers: when you speak you reinstalled vista, did that include a knotty drive format? Totally verbs install?
If not, check beneath program files / bungee(?) / circle of light - not sure of the exact location, but it'll be within program files/<someone>/halo and delete that halo folder.
Then install again.
other things to try would be a scan disk to see if the filesystem is ok, but it should be after a verbs reinstall.