Installation & Licensing Center
HOW TO - Verify the Integrity of Installation Files
Authored by Caleb Scharf
September 29th, 2021
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KB956098
Description
If your troubleshooting a stubborn issue with Ansys software, and have already re-installed the software once, it's possible the installation files used to install the software were either corrupted during the download or the extraction/unzip process. While this isn't common, it can occur and is a necessary step to eliminate this as a potential cause.
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
Occasionally, files can get corrupted during a download. This process insures that did not occur.
- Go to the download section of the Ansys Customer Portal.
- Browse to and hover the mouse of the download link to the files you downloaded
- Take note of the md5sum value:
- Open PowerShell and run the following command, using the file path to your file name.
CertUtil -hashfile "[YourFilePathAndName]" MD5
- Example:
- Compare the two md5sum hash values.
- If they are not the same, delete the file you downloaded, re-download the file and repeat this process until they match.
- 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.
- Download and install 7zip.
- Right click the Ansys Zip file you downloaded > select 7-Zip, then select Extract to [x]Filename
- Browse to the extracted folder and follow HOW TO - Install Ansys Software.