"Set up"? No.
A condenser mic designed to connect to a computer will have a USB connection. Generally, there is nothing to "set up". The computer's USB port will supply (phantom) power to the mic element. The application using the USB condenser mic may need some sort of "set up", but the mic won't.
A condenser mic with a XLR connection *may* may have a battery cavity so a new, fresh, battery may be needed. If that mic is connected to a sound board, then the board may be able to provide phantom power (with or without a battery in the mic) or an external power supply may be needed if the condenser mic has not battery cavity and the mixing board can't supply phantom power. To use these condenser mics with a computer, a USB audio interface with a XLR input is needed - again, no "mic setup", but the USB audio interface may need a driver... (most of the decent audio interfaces can supply phantom power)... as may the audio software being used in the computer.
Tell us the mic and we can tell you what "set up" is needed (typically none).