You tried to install directly to a root drive (like D:\ ) without permission. Fix: Create a folder manually first (e.g., D:\Ample Libraries ) and point the installer there.
For those encountering this installer for the first time, the process can seem slightly different from other developers. Here is the definitive workflow. ample sound library installer
: Enter the User ID and password used on the Ample Sound website. You tried to install directly to a root