Does not start at all. nothing at all. I did go directly to the install folder and tried to run as administrator and just double clicking it. Funny too, I just installed a clean WSJT-X V2.5.4. on my laptop and it went in effortlessly and works great.. Even updted the icom japan USB driver for the IC7300 and used zadig to besure the silicon labs CP210x to UART bridge driver was there. I use com10 115200,8,none,1 to 7300.