1st- Go to the control panel.
2nd- Go to appearance and themes.
3rd- Go to change screen resolution.
4th- Click on advanced.
5th- Go to whatever video card you have (for me its GeForce 4 MX 440)
6th- Click on color correction.
7th- Change digital vibrance to Max and click apply.
8th- Open halo and play like you never played before!
NOTE: Your screen may turn a little bright but ull get used to it
