Where do I install VST instruments?

Hello everyone. I’m a rookie for MIDI and VST instruments, and I have a silly quesyion. I’ve just downloaded the DSK Grand Piano VST, but I don’t know exactly in which folder do I put it, and how do I select it once I open Cubase.

Did you install your Grand Piano VSTi? Did it ask you were to install?
Check videos on youtube how to manage VSTi in Cubase.
Quick tip will be: go to Devices -> VST Plugins, there is a lot of stuff to study. Also you can see there where Cubase are looking for plugins.
Typical paths are:
c:\Program Files (x86)\VstPlugins
c:\Program Files (x86)\Steinberg\Cubase 8.5\VSTPlugins
c:\Program Files (x86)\Common Files\VST3
c:\Program Files\Common Files\VST3
c:\Program Files\Steinberg\Cubase 9\VSTPlugins\

Also you can install into your custom folder and tell Cubase search there.
Than create a new project and add instrument track. Find your GrandPiano in VSTi option list. If you don’t see it, you missed something.