Because V9 is a legacy version, standard modern installation via the current Waves Central may require specific steps for older operating systems: Waves Audio Plugin Bundles
Before attempting to install a decade-old plugin bundle, consider these hurdles: Waves All Plugins Bundle v9r4-peace-out -DJ Vagan-
If you obtain the (typically a 7.2GB RAR archive), here is exactly what you are getting—frozen in time. Because V9 is a legacy version, standard modern