sudo apt-get update
sudo apt-get install samba samba-common-bin
sudo nano /etc/samba/smb.conf
[lnj-rpi-3b+] comment = public storage path = /home/pi valid users = pi read only = no create mask = 0777 directory mask = 0777 guest ok = yes browseable = yes
sudo smbpasswd -a pi
sudo samba restart