SW2020 SP3 - Without modelling window

Hello,

I've installed SW2020 SP3 without big issues, but when I open SW the Wellcome window appears and I can select a file but when I want to open a file or create a part the system doesn't answer. Only the icon in the windows bar is in the screen. There is nothing in the screen, just the Windows' wallpaper.

Please, anyone has the same problem?

SolidworksGeneral