Ensure you are not running the project from a restricted network drive or a cloud-synced folder (like OneDrive or Dropbox). Syncing software often "locks" files while ANSYS is trying to write to them, causing a crash. 5. Review the Diagnostic File
Ensure you are using the latest "Enterprise" or "Workstation" drivers if you have an NVIDIA Quadro or AMD Radeon Pro card.
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 Ensure you are not running the project from
Ensure the drive containing your "Project Scratch" directory has at least 50–100GB of free space for large models.
How to Fix "ansyswbu.exe encountered a problem" in ANSYS Mechanical Review the Diagnostic File Ensure you are using
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.
ANSYS creates massive files during the solution phase. If your drive runs out of space, the executable will simply terminate. Graphics Card Drivers and Hardware Acceleration Ensure the
Open the latest .log or .err file in Notepad. Scroll to the bottom. If you see keywords like "Memory allocation failed," you've run out of RAM. If you see "Access Denied," it's a permission issue. 6. Installation Integrity