Sounds like unless you have a NAS drive, Drop box or some other cloud based thing might work. Are you connecting your iPad to your windows PC with iTunes? If not that might work.
Thing is it makes a difference how you got the photos on your iPad, they could be stored with in the app you used to get them on there. I have seen file explorer type apps you can download but not sure how useful they will be in connecting with your PC. The free ones usually make you pay for the version that will connect to a network.
I love my iPad/iPhone but they don’t make it easy to share with anything other than Apple products.