I keep getting the same dialogue box:


The "next" button does not appear to allow me to advance the installation.
I have uninstalled TIR, ran CCleaner to purge the registry of TIR entries (assumed thorough clean), unplugged camera, and I still get the hanging installer.
Up until this, 5.13 final worked well.
I run Win 7 64 bit Home premium.
I appreciate any assistance to get this build working on my PC.