I've had this issue before and used the task manager to kill the DXP tasks (there were a few due to the multiple attempts to start the program). After this the program started fine.
Another possibility is the printer driver which can cause a very long startup time (giving appearance program is hanging). Try changing the default printer or uninstalling the current printer driver.
I have recently installed Circuit Studio trial version, but the application won`t launch. DXP process is running, but no window appears.
Windows 7 64-bit
Ge Force GT 430
Drivers are up to date.
Are there any recommendations how to solve this problem?