Chapter 1: Installation Prerequisites for Windows

This document describes the prerequisite steps necessary to correctly install and configure all Ansys, Inc. products on Windows platforms for Release 2025 R2. To view a complete list of the products available, see Applications Included with Each Product.

Note:  Ansys Workbench is installed by default as product components to most Ansys, Inc. products. Ansys Workbench is not installed as part of the products under Ansys Additional Tools, nor with the CFD-Post only option. Ansys Workbench includes the following applications:

  • The Mechanical application

  • DesignModeler

  • DesignXplorer

  • Meshing

  • Remote Solve Manager

  • Fluent Meshing

  • EKM Client

  • GRANTA Selector

  • Minerva

  • SpaceClaim Direct Modeler

    Caution:  While SpaceClaim Direct Modeler and Ansys SpaceClaim can be installed on the same computer, only one of the applications can be configured with Ansys Workbench at any given time. Users can choose which version to configure via the CAD Configuration Manager utility.

  • SpaceClaim CATIA V5 Interface

  • ECAD

Because some of these applications can be run as standalone applications without Ansys Workbench, you will see some but not all of these listed separately as options when you uninstall. In such cases, you will need to select those options in order to uninstall those components.

Where supported, IGES and STEP Geometry Interfaces will be installed.

Some procedures apply only to specific products and are so noted.

Important Notice

If you want to run multiple releases of Ansys, Inc. software, you MUST install them chronologically (for example., Release 2025 R1 followed by Release 2025 R2). If you install an earlier release after installing Release 2025 R2, you will encounter licensing issues that may prevent you from running any products/releases. If you need to install an earlier release after you have already installed Release 2025 R2, you MUST uninstall Release 2025 R2, then re-install the releases in order.

Summary of New and Changed Features

The following features are new or changed at Release 2025 R2. Review these items carefully.

  • A new -console command has been added to the "silent" Ansys Installation. When added to the command line, this argument displays the clickwrap licensing agreement and log files.

  • The Ansys installation program has been updated to support Ansys Speos for NX 2506.

  • The Ansys Automated Installer includes the option of using your Ansys ID in conjunction with a proxy server.