Solution: CAD Crashes with Unhandled Exception and .NET Error 0x800736b3

Issue:

When attempting to open any version of Autodesk CAD software, the application crashes and displays an unhandled exception within an application component, along with .NET error code 0x800736b3.

解决方案

To resolve this issue, follow these steps:

1. Modify .NET Framework Components:
   1. Open the Control Panel.
   2. Navigate to Programs > Programs and Features.
   3. Click Turn Windows features on or off (typically found in the left pane).
   4. In the “Windows Features” dialog box, locate and uncheck the checkboxes for .NET Framework 3.5 (which includes .NET 2.0 and 3.0) and .NET Framework 4.8 (or the highest version listed).
   5. Click OK to confirm and initiate the uninstallation of these .NET Framework components. Windows may require a restart.
2. Uninstall Recent Windows Updates (If Error 0x800736b3 Persists):
   • If the error 0x800736b3 persists after completing Step 1, proceed with uninstalling recent Windows updates.
   1. Return to the Control Panel\Programs\Programs and Features interface.
   2. Click View installed updates (typically found in the left pane).
   3. Identify the most recent updates installed on your system. A commonly problematic update is KB5011048. KB5011050
   4. Right-click on the identified problematic update(s) and select 卸载.
   5. Important: After uninstalling the update(s), restart your computer immediately.
3. Test CAD Software:
   1. After completing the above steps and restarting your computer (if applicable), attempt to open your CAD software again.
   2. Verify if the crashing issue and associated error 0x800736b3 have been resolved.

By following these instructions, you should be able to resolve the CAD application crashing and the associated .NET error 0x800736b3. Ensure all steps are performed correctly and that your computer is restarted as instructed.