Running ANSYS without administrator privileges, or installing it in C:\Program Files without proper permissions, can block ansyswbu.exe from writing diagnostic or temporary files.
Step 1: Close all running Ansys Workbench and License Manager instances. Step 2: Press the Windows Key + R, type "%appdata%" and hit Enter. Step 3: Open the "Ansys" folder and locate your version folder (e.g., v231, v241). Step 4: Rename that specific version folder to "vxxx_old". Step 5: Press the Windows Key + R again, type "%temp%" and hit Enter. Step 6: Locate the folder named ".ansys" and rename it to ".ansys_old". Step 7: Relaunch Ansys Workbench to build clean configuration profiles. Use code with caution. 2. Remediate Intel OpenMP Conflict ( libiomp5md.dll )
Real-time scanning can lock temporary solver files, preventing ansyswbu.exe from writing or reading necessary data. This is especially common with McAfee, Norton, or corporate endpoint protection.
This is the most common fix and clears corrupt temporary data that might be causing the crash. Ansys Innovation Space Rename AppData folder : Close all Ansys sessions. In File Explorer, type in the address bar. Open the folder and rename your current version folder (e.g., rename Rename Temp folder in the File Explorer address bar. Locate the folder and rename it to .ansys.old Restart Workbench Step 3: Open the "Ansys" folder and locate
Corrupt preference files often prevent the Mechanical GUI from rendering properly. Resetting them forces ANSYS to rebuild clean configuration files. Close all ANSYS applications. Open the Windows Run dialog ( Win + R ).
The diagnostic file is typically saved in your temporary directory:
Outdated or unsupported graphics cards (especially integrated Intel graphics) are the most frequent cause. User Profile Corruption: Corrupted settings in the AppData or Temp folders. System Permissions: Step 6: Locate the folder named "
"AnsysWBU.exe encountered a problem. A diagnostic file has been written"
Look for display options and toggle the graphics device driver from hardware acceleration (OpenGL/DirectX) to software emulation mode. 3. Analyze the Diagnostic Dump File
Type %temp% in the Explorer address bar and rename the .ansys folder to .ansys_old . Relaunch Workbench and try to open Mechanical again. open your graphics control panel (e.g.
If the crash happens when importing geometry:
: Update your GPU driver directly from the manufacturer (NVIDIA or AMD) website. Select the "Enterprise" or "Studio" driver instead of the "Gaming" driver for better stability.
: If your laptop has both integrated and dedicated graphics, open your graphics control panel (e.g., NVIDIA Control Panel
That “diagnostic file” is usually in:
diagnostic_path = r"C:\Users\username\AppData\Local\Temp\ansys_diagnostic.dmp" crash_info = parse_ansys_diagnostic(diagnostic_path) print(crash_info)