Boris FX Sapphire Lighting Unit

I bought a Sony Vegas Pro 16 Suite that included this Boris FX Sapphire Lighting Unit a year ago . Can any one show me how to uninstall this software Boris FX Sapphire Lighting Unit ? I did reformat my computer reinstall Windows , reinstall Sony Vegas Pro, Reinstall Boris FX Sapphire Lighting Unit . But when reinstall Boris FX Sapphire Lighting Unit it asks me to uninstall it before reinstall it so what do I do now ? Thanks