it does not open a new window when I connect it to either of my laptops
and one can hear a feeble 'beep' sound inside the case; is it broken ?
thanks in advance
There's a possibility that the internal drive has become partially dislodged from its socket connection. Carefully see if you can open the drive case and re-seat the physical drive. On the other hand, if the drive was shocked (dropped), it may be toast.
Perhaps a reputable computer repair centre might assist.
The drives we use these days for Audiophiles don't come apart easily, but that also means that they don't dislodge themselves from the internal connector (it's basically impossible for that to happen on these drives, short of breaking all the plastic for the drive), so in your case don't worry about disassembling the drive.
It's possible that the computer is now set to not display the window when you plug the drive in. Try opening a File Explorer window (right click the Start menu and choose File Explorer) then see if you can locate the Audiophile drive in the list on the left side.
If that doesn't help, I'd suggest trying a different USB cable, a different USB port on the laptop (on the opposite side of the laptop if possible), and if you're using a USB hub, splitter, or extender, I'd suggest taking those out of the equation and plug the drive directly into the computer, as those devices usually don't provide enough power to run a hard drive.