ANSYS relies heavily on temporary scratch space. If these folders become bloated or contain corrupted data from a previous crash, ansyswbu.exe will fail to launch.
Ensure your GPU driver is up to date. If you have dual graphics (e.g., Nvidia and Intel), use the Nvidia Control Panel to force Ansys to use the High-performance NVIDIA processor Check Scratch Directory: In Mechanical, go to File > Options > Analysis Settings and Solution . Ensure a valid path is set for the Scratch solver files directory Environment Variable Fix: Add a new system variable named ANS_OLD_ATTACH with a value of Advanced System Settings Ansys Innovation Space 4. How to Report the Problem
For engineers, simulation specialists, and students who rely on ANSYS Workbench for Finite Element Analysis (FEA), Computational Fluid Dynamics (CFD), and electromagnetic simulations, few sights are as disheartening as a crash dialog box. Among the most common and frustrating error messages is: ANSYS relies heavily on temporary scratch space
The diagnostic file generated when Ansyswbu.exe encounters a problem is a critical tool for troubleshooting. This file typically includes:
Update your GPU drivers to the latest "Studio" version if available. Run the ANSLIC_ADMIN utility as an Administrator. If you have dual graphics (e
If you are encountering this error, the following steps are widely recommended by Ansys Innovation Space and FEA Tips : : Close all ANSYS applications.
A specific Windows library file often causes this crash in newer versions of Ansys. Ansys Innovation Space Locate the file libiomp5md.dll C:\Windows\System32 Rename it to libiomp5md.dll.old Among the most common and frustrating error messages
Last updated: For ANSYS Workbench releases 2022 R1 through 2025 R1. Always consult the ANSYS Customer Portal for release-specific known issues and hotfixes.