Understanding BIM Techniques and CAD Freezes: How to Fix Random Crashes in CAD Software

Question:

When using AutoCAD, the program may randomly crash or freeze. Common symptoms include:

• Fatal error messages.
• Unhandled exception errors.
• Illegal access errors.
• “AutoCAD has stopped working” notifications.
• Messages indicating AutoCAD is not responding.
• AutoCAD closing unexpectedly without any message.
• The program becoming unresponsive, preventing any operation.

Possible Causes:

The most common reasons for these issues fall into the following categories:

• Missing updates for AutoCAD or the operating system.
• Issues unrelated to specific graphics hardware.
• File-specific problems.
• Conflicts caused by third-party add-ons or plugins.

Solutions:

1. Update AutoCAD and Operating System:

Failure to install essential product or system updates can cause instability. Follow these steps:

1. AutoCAD updates: After the initial release, updates with bug fixes and enhancements are regularly published. Refer to Installing Updates, Add-ons and Enhancements, and Download Finder for guidance.
2. Operating system updates: Ensure that:
   • AutoCAD runs on a supported operating system.
   • All the latest updates for your OS have been installed.
   • Your computer has been restarted after updates.

For detailed OS requirements, see the AutoCAD System Requirements and AutoCAD LT System Requirements.

Note: If you encounter performance issues after updating your operating system, follow the troubleshooting guidelines for AutoCAD performance problems post-OS update.

2. Issues Unrelated to Specific Graphics:

• Update your video drivers and adjust software settings as described in Poor graphics performance in AutoCAD for Windows.
• Try connecting your display using different cable types.
• Test using a different monitor.
• If using an Intel Iris Xe graphics card, follow the steps outlined in AutoCAD crashes due to Intel Iris Xe graphics devices.

3. Conflicts with System Utilities or Other Software:

• Uninstall the Autodesk Desktop Application.
• Remove the A360 Desktop Application (How to uninstall A360Desktop).
• Try disabling or uninstalling antivirus software temporarily.
• Restart your computer in diagnostic mode to disable background processes and run AutoCAD in a clean environment (Resolving Autodesk software issues using Windows diagnostic mode).
• Test disabling BitLocker on Windows 8 or 10 (BitLocker).
• Uninstall and reinstall Microsoft .NET Framework (How to remove and reinstall Microsoft .NET Framework).
• Uninstall and reinstall Microsoft Visual C++ runtime libraries (How to remove and reinstall Microsoft Visual C++ runtime).

4. Software Damage from Installation Errors or System Crashes:

• Reset AutoCAD to default settings (How to reset AutoCAD to default values).
• Repair or reinstall AutoCAD (How to repair or reinstall AutoCAD installation).
• Perform a complete uninstall and reinstall following the recommended steps (Recommended steps for uninstalling and reinstalling AutoCAD).

5. File-Specific Issues:

If AutoCAD crashes while opening or processing a specific drawing, the file may be corrupted. Refer to How to repair damaged AutoCAD files and troubleshoot performance issues. If your files are stored on a non-Microsoft network, move the drawings and external references to your local drive and work from there. See Autodesk’s support for non-Microsoft networks for more information.

6. Issues Related to Add-ons or Plugins:

Uninstall any third-party plugins, add-ons, or object enablers. Verify software requirements and install any updates provided by the vendor to ensure compatibility.

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