This is documentation for Mathematica 5, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)

Documentation / Mathematica / Front End / Menu Commands / Help Menu /

Rebuild Help Index

FilledSmallSquare Rebuild Help Index rebuilds the categories and index for the Help Browser.

FilledSmallSquare Use this command when you have installed an add-on package or modified documentation files.