I bow to you as Destructor of the Universe...I also uninstalled Red Giant, but I still have the plugins listed in my plug in chooser and I get this annoying message: "Warning: A valid Universe membership was not found. Please check your membership status with Red Giant Link. I don't have an active membership or want one."(I downloaded the trial and it didn't work with MSPS 13--I uninstalled and thought I was out.)
I get this warning message every time I boot up, and it slows the system down.
Succcess! Red Giant support replied (they we're totally on their game--and BTW, Quicklooks is a solid program with adjustable color grading presets...it just doesn't work with Movie Studio Platinum 13).
My mistake was uninstalling using Windows--if I had uninstalled with the Red Gian Link in my start menu, I could've avoided the pain.
I manually removed the files by going to file path: C:\Program Files\Common Files\OFX\Plugins\Red Giant. I simply deleted the folder and restarted.
The Universe is gone and I'm experiencing profound tranquility.