How do I do passwordless SSH from linux to windows

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Windows

Linux

I have a Debian OS and Windows 2016 with OpenSSH installed and running.
I can do ssh from my Debian to Windows with the password.

$ ssh Administrator@<windows ip="">

This prompts for a password and it works with password.

As I know, ssh-key-gen is used to generate keys and ssh-copy-id is used to copy the public key to the remote host and I tried this from Linjx to Linux which worked.

But how do I achieve passwordless SSH from Linux (Debian) to Windows?

What I have tried:

I tried copying the key to Windows machine under C:\Users\Administrator\.ssh

But no luck. SSH still prompts for a password.