So, “nothing happens” at all. ?
What’s your system, Mac / PC ?
If it’s a PC,. Can you open “task Manager” and view the Applications , Processes, and Services which are running,
If Daz Studio isn’t listed as running… Try Right clicking on the Daz Studio Icon, and selecting Run as Administrator.
Also ..make sure the DazContentmanagementservice is running
you can also Browse to the Programs files/ Daz3D folder, and try running Studio from there.