Installation and Upgrade > Installation and Configuration Guide - Update Existing Installation > Updating an Existing Installation > Selecting the Installation Type
  
Selecting the Installation Type
The PTC Solution Installer (PSI) allows you to install products using the following installation types:
New Installation
A new installation allows you to install on one or more machines and gives you the option to change the default configuration options.
Update Existing Installation
Updating an existing installation allows you to install a service pack, add products to your already-installed solution, or add a language. For example, if you have an existing Windchill PDMLink system, use Update Existing Installation to add Windchill ProjectLink or Windchill Business Reporting to your solution.
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When you add a product to an existing installation, you will be given the configuration options for a solution installation type.
Select Update Existing Installation and click Next.