Installation and Upgrade > Installation and Configuration Guide - Update Existing Installation > Planning Before Updating an Installation > Creating a Staging Directory
  
Creating a Staging Directory
You must create a staging directory before you update your Windchill solution. You may specify up to five staging directories.
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The term "product CD" can refer to either the physical CD media or the equivalent files downloaded from PTC.com.
A staging directory is a directory where you copy the product media before beginning the installation. This allows the PTC Solution Installer to access each CD image without stopping to prompt you during installation.
Using a staging area provides a faster installation experience and removes the need to insert media during installation.