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 - Verify the Integrity of Installation Files

                          Authored by Caleb Scharf August 5th, 2023 9145 views 1 likes KB956098

                          Description

                          If you're troubleshooting a stubborn issue with Ansys software, verifying the following items will help rule out several possible causes we have observed.

                          Solution

                          Step #1 - Verify Installation Files Are Saved Locally

                          Installing Ansys from a network drive or over a VPN can cause problems with the extraction process, and or accessibility of the files depending on network conditions, and has been known to produce errors that go undetected at the time of the install. 

                           
                           

                          Step #2 - Verify Installation Files Are Not Corrupted (optional)

                          While very rare, installation files can get corrupted during a download.  If you suspect your installation files may be corrupt, perform this process to ensure they aren't.

                          1. Go to the download section of the Ansys Customer Portal.
                          2. Browse to and hover the mouse of the download link to the files you downloaded.
                          3. Take note of the md5sum value:
                            Machine generated alternative text: ISO Images ANSYS 2020 R2 ISO Windows x64 DVD lot 3 Size(bytes): 3999608832 md5sum: dd658b1fa99c5eea157df4d66758 File Name: ANSYS2020R2 WINX64 Diskl click on (?) for more information
                          4. Open PowerShell‍ and run the following command, using the file path to your file name.
                            CertUtil -hashfile "[YourFilePathAndName]" MD5

                            Machine generated alternative text: Windows PowerShell PS C:\Users\Ca1ebScharf> certutil 05 hash of C: IT ANSYS2020R2 WINX64 Diskl.iso: billdd658b1fa99c5eea157df4d66758 md5 Cert Utl PS C: as 1 e comman comp eted successfully.
                             
                          5. Compare the two md5sum hash values.  
                          6. If they are not the same, delete the file you downloaded, re-download the file and repeat this process until they match.
                          7. If you download multiple files, you will need to repeat this compare process for each file.
                           
                           

                          Step #3 - Verify Zip Files Were Extracted Successfully

                          While very rare, were have seen instances where the Windows extraction utility does not properly extract all files. If you downloaded a Zip file (vs an ISO file), install and use a free open source utility called 7Zip to unzip the files.

                          1. Download and install 7zip.
                          2. Right click the Ansys Zip file you downloaded  >  select 7-Zip, then select Extract to [x]Filename
                          3. Browse to the extracted folder and follow HOW TO - Install Ansys Software‍.
                           
                           

                           

                          Was this helpful?

                          Yes
                          No

                          1 out of 2 found it helpful

                          Related Articles

                          HOW TO - Setup Ansys Remote Solve Manager (RSM)

                          HOW TO - Gather FlexNet License Server Host Info

                          HOW TO - Add Firewall & Port Exceptions for Ansys License Manager

                          HOW TO - Gather Ansys Diagnostic Logs

                          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