If you have other engineering software or Python installations installed:
Before fixing the error, it is crucial to understand what the error is not . This is not a Windows OS corruption error. It is not a simple “out of memory” warning (though memory can trigger it). This is a fatal crash of the ANSYS solver binary.
: If you have both integrated and dedicated graphics, ensure Ansys is forced to use the high-performance card (e.g., via the NVIDIA Control Panel).
Find the folder named (note the period prefix) and rename it to .ansys.old . Relaunch Ansys Workbench to see if the issue persists. 2. Update Graphics Card Drivers If you have other engineering software or Python
When you see this message, it means the GUI (Graphical User Interface) of Ansys Workbench has crashed. The underlying solver (like Mechanical or Fluent) might still be running in the background, or it may have crashed simultaneously. The diagnostic file ( .dmp ) is written to assist Ansys support or the user in diagnosing the specific cause of the crash. Common Causes for Ansys Workbench Crashes
If you want, paste the relevant lines from your diagnostic file (or attach the file location and Ansys version) and I’ll help interpret the errors and suggest next actions.
Locate the folder and rename the version subfolder (e.g., rename v232 to v232_old ). This is a fatal crash of the ANSYS solver binary
Restart Workbench; this forces the software to reconstruct a clean profile.
This error is notorious after a Windows update, an antivirus definition update, or an ANSYS point release upgrade. Real-time scanning by McAfee, Norton, or even Windows Defender can lock temporary solver files, causing ansyswbuexe to lose access to critical data. Similarly, using an older version of ANSYS on Windows 11 may trigger deprecated system calls. Solution: Exclude ANSYS temporary folders from antivirus scans. Ensure that the exact ANSYS version is certified for your OS version.
Missing DLLs or a flawed installation.
Install the latest "Studio" or "Enterprise" drivers for your GPU (NVIDIA/AMD) rather than "Game Ready" drivers.
Ansys relies heavily on dedicated GPUs (such as NVIDIA Quadro or GeForce chips) to compute and display geometries. Outdated or generic Microsoft display drivers regularly cause AnsysWBU.exe to crash instantly upon opening the model workspace.