Hello,
I cant find the Midi Guitar2’s demo in VST’s folder in ableton live 10.
In my folder steinberg there is this file : MIDIGuitar2-32bit.dll.
My PC is 64bits.
Thanks for your help and sorry for my english… I’french 
David
Our installer installs both 32 and 64 bit plugins on your system in one go.
Please rescan plugins in Live with ALT key pressed.
Further help see https://www.jamorigin.com/docs/daw/#toggle-id-1