If you used a two-screen setup before, please reconnect the second screen.

Otherwise, please activate your Projetex, clicking on it on the taskbar. Then push the Alt+Space key combination and select Move from the menu. Use the arrow buttons on your keyboard to move the Projetex window back to your desktop.

If this fails, please contact support at https://aithelp.com/Tickets/Submit with the problem. You will be given a special script file and instructions on how to use it to restore visibility to the interface.