sudo apt update

sudo apt install feh
sudo apt install samba
sudo apt install samba-common-bin

sudo nano /etc/default/keyboard

Change "gb" To Match Your Country

sudo reboot

sudo mkdir -p /home/pi/frame/photos
cd frame

sudo nano start_frame.sh

Add the following below and save

#!/bin/sh
DELAY="5"
/usr/bin/feh --quiet --recursive --randomize --full-screen --zoom max --hide-pointer --slideshow-delay $DELAY /home/pi/frame/photos

Run The Following Command

sudo chmod +x start_frame.sh
cd ..

sudo nano /etc/xdg/lxsession/LXDE-pi/autostart

Add The Following Line Below At The Bottom And Save

@/home/pi/frame/start_frame.sh

sudo nano /etc/samba/smb.conf

Add The Following Lines At The Bottom And Save

[Photos]
comment = Photo Share
path = /home/pi/frame/photos
writeable = Yes
guest ok = no
read only = no
only guest = Yes
create mask = 0644
directory mask = 0755
browseable = Yes
public = Yes
force user = Administrator
force group = Administrator

Restart SMBD

sudo service smbd restart

sudo chmod 0777 /home/pi/frame/photos
sudo useradd -s /bin/true Administrator
sudo smbpasswd -a Administrator

Password Is: raspberry

Install The Following

sudo apt install xscreensaver

Go Under Menu And Click On Screensaver And You Need To Disable It

On your Windows desktop open a folder up and up top type \\raspberrypi and it showed show the folder photos. 
Drag pictures into this folder and reboot pi. Then do a sudo reboot

The Following Video Shows How To Setup The Slide Show