winscp for win 2012r2 standard

can we able to do client side access users SFTP without password.
required steps configure that win 2012r2 standard and client users access without password but secure

If you are looking for instructions for setting up a public key authentication, see:
https://winscp.net/eng/docs/guide_public_key

i want make winscp server (192.168.168.2) and this system i will install winscp and i want user access file this server through but facing issue

check the screen shot what i do i want ftp work i will carry winscp sftp through

There's nothing like "winscp server". I understand, that you want to set up an SFTP server on Windows machine, right?
Please follow this guide:
https://winscp.net/eng/docs/guide_windows_openssh_server