First things first. If you have no idea what you're doing under the hood of your computer or have no previous OS "tweaking" experience, stay away from Black Viper. You can turn a service off or modify it to the point you lock yourself out of your system. Translation > Having to wipe the drive and start over.
But if you're not a tweaking rookie Black Viper has win 7 and 8 tweaks.
Black Viper's Website
But if you're not a tweaking rookie Black Viper has win 7 and 8 tweaks.
Black Viper's Website
