I am trying to access a new PI Zero W headless on Windows 10. I have followed the instruction at: https://desertbot.io/blog/headless-pi-zero-w-wifi-setup-windows
I get the putty window open that asked for "login as:" and I put pi. That causes a putty fatal error: No supported authentication methods available (server sent: publickey)
I have found several descriptions of how to fix this problem but all either assume that I have access to the Zero with a monitor and keyboard or assume that I am running a linux operating system.
What is causing the problem and is there a way to fix it using only Windows 10.