To see if the GPU is the culprit, try launching ANSYS in "Software Rendering" mode by adjusting the display settings in the Workbench CAD Configuration Manager. 3. Check for Workspace/Layout Corruption
ANSYS creates massive files during the solution phase. If your drive runs out of space, the executable will simply terminate.
If you are on a laptop with dual graphics (Intel + NVIDIA), go to Windows Graphics Settings and force ansyswbu.exe to run on the "High Performance" GPU.
The Mechanical interface is graphically intensive. Incompatibility with your GPU drivers is the #1 cause of "ansyswbu.exe" crashes.
Also check AppData\Roaming\Ansys\vXXX (where XXX is your version) and consider renaming the version folder to vXXX_old to reset your user preferences. 2. Graphics Card Drivers and Hardware Acceleration
In Workbench, right-click on the Model or Results cell of your system and select Reset Setup . Note that this might revert some local display settings, but it often bypasses the crash. 4. Space and Permissions Issues
If you are working in ANSYS Workbench and suddenly see a popup stating you aren't alone. This is a generic crash error for the Mechanical application (ansyswbu.exe). It essentially means the software stopped unexpectedly, often leaving behind a .dmp or .log file in your project folder. 1. Clear Your Temporary Files
If the crash happens immediately upon opening any project (even a blank one), your installation might be corrupted.