Installation und Upgrade > Installations- und Konfigurationshandbuch - Vorhandene Installation aktualisieren > Planning Before Updating an Installation > PTC Solution Installer Update Options
  
PTC Solution Installer Update Options
The PTC Solution Installer (PSI) allows you to update and install in different ways. To help you plan which one to use, the following table describes the available options:
Installer Update Option
Description
Install Critical Patch Set
A Critical Patch Set is Windchill update that is released by PTC at regular intervals. During the installation of Windchill you will need to download this patch set into your staging area so that it can included in the installation process. Critical patch sets can be found on PTC’s support page, located here:
Install Optional Components
Allows you to install optional components for the existing installation. For information on all optional components, see the Windchill Installation and Configuration Guide (Windchill Installations- und Konfigurationshandbuch).
Move up to Windchill PDMLink
Allows you to move an existing Arbortext Content Manager installation to the latest Windchill PDMLink version.
Add a Language
Add a language to the installation.
Install Re-released components
Allows you to install optional components for the existing installation that have been updated independently of Windchill, such as CreoView.
Install Maintenance Release
A Maintenance Release (MOR) is Windchill minor release that is released by PTC between two major releases. During the installation of Windchill, download this MOR to your staging area, so that it can be included in the installation process.
MOR can be found on PTC’s support page, located here:
After updating to the maintenance release, the update tool must be run. For more information, see Post-Update Actions