Ansyswbu.exe Encountered A Problem. A Diagnostic File Has Been Written Work Here

The error is one of the most common and frustrating crashes in ANSYS Workbench. It signifies that the main Workbench user interface executable ( ansyswbu.exe ) unceremoniously crashed.

The error message means that Ansys Mechanical or Ansys Workbench has crashed.

Look in your _ProjectName_files folder under dp0\SYS\MECH . The error is one of the most common

By learning to locate and interpret the diagnostic file, following the structured troubleshooting workflow, and implementing preventive practices, you can reduce crash frequency and recover quickly when failures occur. Remember that ANSYS, Inc. provides excellent support when provided with the diagnostic files—so never delete them immediately.

Search the system for *.dmp or *.diagnostic files modified at the crash time. Look in your _ProjectName_files folder under dp0\SYS\MECH

Type %temp% in the address bar and rename the .ansys folder to .ansys.old .

Navigate to your ANSYS installation media folder or check C:\Program Files\ANSYS Inc\vXXX\prereq\ . Run the installers for Visual C++ and .NET found inside to repair the installations. provides excellent support when provided with the diagnostic

| Keyword | Meaning | |---------|---------| | EXCEPTION_ACCESS_VIOLATION | Memory access issue (often hardware or driver related) | | STACK_OVERFLOW | Infinite recursion or very deep command calls | | Out of memory | Insufficient RAM or virtual memory | | Failed to load DLL | Missing or corrupted dependency | | Graphics driver | GPU-related failure | | Corrupt project file | Issue with .wbpj or .mechdb file |

Does the crash happen Workbench, or only when clicking a specific module like Geometry or Mesh ? What graphics card is installed in your system? Share public link

Elias was a structural engineer, and the simulation running on his workstation was the digital stress test for a new bridge design. If the math held, the city got a landmark. If it failed, he went back to the drawing board for the sixth time this month.

Outdated or unsupported graphics drivers often cause startup crashes. Ansys Innovation Space Update Drivers