I have got an Nucleo L073RZ ( and also a discovery 407,F410RB and 4 more nucleo boards) .
It is a new board just unboxed . I can see it as a drive in my computer beside disks so I know it is working.
But st link cannot detect it. All my boards except discovery board have same issue. I have tried 2 computers, windows 10 and windows 11 .
I used to program one of the nucleo board.
More details: In one of the board the st link made me upgrade firmware , still same issue is there.
Let me first welcome you to the Community 🙂
Change the USB cable (use a quality USB serial Comm cable and NOT a charging cable).
Try with latest release of STM32Cubeprogrammer.
If voltage is 0.16V, the board doesn't have power.
Doesn't make sense that the st-link on the board would have power and work normally but the target mcu does not.
Double check power settings, jumpers.