mudgel
The recommended default is to leave background scans on but if you insist on turning it off, go to Preferences>VST and select the option you want.
Thanks. It seems like the only issue is when UAD had a new version. All the demos get loaded in the list. I'd like to turn it on after I've installed a new plug in.
I looked in the location you're referring to before my post. I didn't see it there. Are there any more granular things I should be looking for?