I'm not sure if this thread is still current. It's August 2019 now and I found no option to install Arturia plug-ins on an external drive or partition other than the operating system. I wrote Arturia and they replied you can not install on anything other than the OS. Disappointed, I looked at the sparse "Arturia Software Center" program's (gear icon) settings and found "Silent Install" was enabled. I disabled it and now- after downloading the compressed files- it opens a menu where you can assign install and disable components. I'm using Win10 and Win7. I'm sure someone noticed this prior to me... Even Arturia didn't mention it, however.
Summary:
Disable "Silent Install"
Who would add such a feature?
-Rob
Hi and welcome to Arturia forums.
You can't change the install path for VST3s.
And you can't change the install path for all those files that are installed in the hidden folders ProgramData, and that's all the presets and samples.
So all in all there is'nt much space to save by changing the install paths.
Disabling the Silent install will give you the option to change path for VST2, and the standalone applications, but not for their content, and you have to do it one at a time. The Silent install offer an option to not get all those popup windows and is a feature many wan't, as they find the install popups annoying. It's a good feature. I actually think the SIlent install option is disabled by default, unless that has changed because of complains about the popups.