FLStudio using the latest release .
Reset your FLStudio settings .
Windows - If the User data folder is set to a location inside Program Files, Windows may prevent FLStudio access and so FLStudio will fail to start ...
FLStudio installer not responding on Windows Vista can be caused by either of the following things:
You have an anti-virus software preventing the installer from launching. Disable your anti-virus software and run the installer again ...