How can I transfer android data to PC (windows) given that phone screen is not working and I don't want to replace it.?
ADB commands won't work if you haven't set up USB debugging prevoiusly, and also allowed your computer to debug the phone.

If I understand you correctly that your phone only turns on, but you cannot see anything on the screen, I am afraid nothing can be done. Take your phone to a person who can fit in another display. Otherwise, this seems virtually impossible.