Hmm, off my head I can’t think of anything else. I have a Win7 64-bit and the program runs fine on mine. Here is one more thing: can you run the bat file in command line, often that gives you more information about what’s missing. To run in command line, click on the windows Start button -> Run -> type in ‘cmd’, that will bright out the command line window. Then you have to ‘cd’ to the folder where the updater program is, and type ‘osFirmwareUpdater.bat’. Check the printout to see if it gives you more information.