Minimal working example

temp-file.tex

% titlepage-demo.tex
\documentclass{beamer}
\usepackage{graphicx}
\usepackage{tikz}
\usetikzlibrary{matrix}
\title{Some slides}
\date{05 November, 2018}

\AtBeginSection[]
{
  \begin{frame}<beamer>
    \frametitle{Outline}
    \tableofcontents[currentsection]
  \end{frame}
}

\addtobeamertemplate{navigation symbols}{}{%
    \usebeamerfont{footline}%
    \usebeamercolor[fg]{footline}%
    \hspace{1em}%
    \large \insertframenumber/\inserttotalframenumber
}

\begin{document}

%--- the titlepage frame -------------------------%
\begin{frame}[plain]
  \titlepage
\end{frame}

\begin{frame}<beamer>
  \frametitle{Outline}
  \tableofcontents
\end{frame}

%--- the presentation begins here ----------------%

\section{FAT32}

\begin{frame}{A frame}
\end{frame}

\section{The models}

\begin{frame}{Another frame}
\end{frame}

\end{document}