Printer and folder deletion in Network

I have tried to set up printer sharing on my home net.The net is accesible
but I cant share printer.I wish to delete a listed printer and two folders
listed in the show all folders and devices section.I think I may have messed
up on the original set up and wish to start where just the computers are
listed and the go from there again
I have tried but cant figure out how to delete anything on the network
Thank you for your patience
Pat