Reinstalled win 10 and lost all my plugins

So I have v9 plugins that won’t show up in waves central under my products, though under licenses , it says they are activated . How do I get them back?? I saw how to install the v9 and tried that. I got some back but now my I can’t use more than one waves plugin in a track or they squeel like crazy, and there is no signal going to the track. Dosen’t matter what version plugin I use. what the heck.???