Contact Us

If you still have questions and are an active SimuTech customer, please submit a request.

  • Ansys Training
  • Skills Center
  • Consulting
  • About
  • Contact Support
  • Home

  • Installation

      • Troubleshooting

          • Errors & Solutions

              • License Management

                  • Info

                      • Remote Solve Manager

                          • Employee Login

                          Can't find what you're looking for?

                          Contact Support

                          Installation & Licensing Center

                          • Home
                          • Installation
                            Installation Guides Installation Tasks Requirements & Info Optional Configurations Uninstallation
                          • Troubleshooting
                            Troubleshooting Guides License Manager Connectivity Issues License Checkout Issues Application Functionality Issues Windows OS / Hardware Issues CAD Plugin Issues Project Specific Issues Uninstallation Guides Diagnostic Resources & Logs Other Tasks
                          • Errors & Solutions
                            Behavior Based Issues & Solutions Error Messages & Solutions
                          • License Management
                            FlexNet Licensing Shared Web Licensing Elastic Licensing Licensing Portal Administration License Borrowing Reporting & Usage Stats Other
                          • Info
                          • Remote Solve Manager
                          + More

                          HOW TO - Comprehensively Reinstall Ansys

                          Authored by Caleb Scharf December 11th, 2024 5120 views 1 likes KB2108636

                          Description

                          If your Ansys installation becomes corrupt, it can cause errors and problematic behavior that can be difficult to resolve.  While the traditional uninstall / install process can sometimes fix these, the traditional uninstall process doesn't remove all temp files and registry settings which can sometimes be the underlying cause of the problem.

                          Some reasons for a corrupt Ansys installation are:

                          • Windows updates breaks software dependencies
                          • Unexpected power loss corrupts files
                          • Application crash or force close corrupts files or settings
                          • Corrupt temporary Ansys files
                          • Security Software caused a corrupt installation

                           

                          Solution

                          Critical

                          If small but important steps are missed, you will need to repeat this process.

                           

                           

                          1. First, perform a Comprehensive Uninstall
                          2. Verify the Integrity of Installation Files if you suspect they may have been corrupted.  This is rarely required, and you may choose to skip this step.
                          3. Manually Reinstall Prerequisite Microsoft Software if you suspect the Visual C++ Redistributable dependencies may be corrupted.  This is rarely required, and you may choose to skip this step.
                          4. Before Proceeding
                            • Don't use the Automated installer.  Use the ISO or Zip files.
                            • Make sure the installation files are saved to the local computer and not being run over a network.
                            • If you downloaded the zip files, verify they get unzipped first.
                            • When installing, verify you right click the setup file and select Run as Administrator
                          5. Finally, Download & Install Ansys

                          Was this helpful?

                          Yes
                          No

                          1 out of 3 found it helpful

                          Related Articles

                          HOW TO - Open PowerShell

                          HOW TO - Reset Ansys License Preferences

                          HOW TO - Troubleshoot Windows Update Errors

                          HOW TO - Open a Command Prompt

                          Popular Articles

                          Ansys Download & Installation Guide (Start Here!)

                          INFO - Ansys Hardware Recommendations & Supported 3rd Party Software

                          HOW TO - Uninstall Ansys Software

                          HOW TO - Test & Fix FlexNet License Manager Connectivity Issues

                          ERROR - Hostid in the license file is not a valid hostid

                          Was this helpful?

                          Yes
                          No
                          Give feedback about this article

                          Can't find what you're looking for?

                          Contact Support

                          Recently Updated

                          • HOW TO - Reset Your Ansys Profile Folder
                          • ERROR - Mechanical failed to open the database
                          • HOW TO - Troubleshoot a Windows Bluescreen (BSOD)
                          • HOW TO - Clear Shared Web Licensing Credential Cache
                          • HOW TO - Generate a Personal Access Token for an Unattended Workflow
                          • HOW TO - Borrow & Return an Ansys License
                          • ERROR - Ribbon/Toolbar Missing From Fluent
                          • HOW TO - Manage Users & Groups for Shared Web Licensing
                          • ERROR - Tomcat Vulnerability CVE-2025-24813 detected in Ansys License Manager
                          • General Inquiries & Sales:
                          • (800) 566-9190
                          • Info@SimuTechGroup.com
                          • Contact Support
                          • Software
                          • Services
                          • Case Studies
                          • Ansys Training
                          • Consulting
                          • Technical Support
                          • About SimuTech
                          • Careers
                          • Privacy

                          © 2025 SimuTech Group


                          Knowledge Base Software powered by Helpjuice

                          Definition by Author

                          0
                          0
                          Expand NEW TAB

                          Hi there! 👋

                          How are you liking the Installation Center?

                          Terrible

                          Bad

                          OK

                          Good

                          Excellent

                          Feedback Successfully submitted