Arduino IDE won't launch in Windows 8.1 Pro

I've installed the Edison custom Arduino IDE on my Windows 8.1 laptop. For some reason it doesn't launch when I double click. Could this be a Java version issue?
I am running version 8, update 25 build 1.80_25-b18

Also posted a question here

You are not the only one. I used to run my Arduino Mega off an old desktop running Windows XP until that one packed up completely & now I use a RaspberryPi B+. Note that there is a faster version of the B+ now.

I had various communications about this issue with Arduino by email with no success.