Try downloading and installing outside of the Organizer or Welcome Screen. Uninstall AIR and IB via the control panel. Then do ctrl+alt+delete and open the processes tab in task manager. Highlight any running Adobe application or process and end it. Use the link below and it will install both IB and AIR.
N.B. when using with Premiere Elements on Windows 64 bit systems, the inspiration browser needs to be installed in both locations C: Program Files/Adobe and C: Program Files (x86)/Adobe
Inspiration Browser Get Update Now
Europe, Middle East and Africa