Hi ,
I have 5 separate sections in my documents and I want that each section's heading start from 1, 2,3,....
Like this : in section 1:


1 Introduction
2 Literature Review
3 Methodology

In section 2
1 Introduction
2 Literature Review
3 Methodology
In section 3 and 4 same as above
1 Introduction
2 Literature Review
3 Methodology

See How to create numbered headings or outline numbering in Ribbon Versions of Word by Shauna Kelly.