"FATAL ERROR: Unhandled e0434352h Exception at..." when starting AutoCAD products

Autodesk Support

May 23, 2025


Products and versions covered


Issue:

Users reported that when launching AutoCAD Products while opening drawing files, it runs through loading but immediately after opening will crash after displaying the following error:

AutoCAD Error Aborting:

FATAL ERROR: Unhandled e0434352h Exception at fd1ba06dh

AutoCAD Error Aborting:  "FATAL ERROR: Unhandled e0434352h Exception at fd1ba06dh"


Note: The last sequence of letters and numbers will be different for every machine. The error can also appear when a file is opened while the AutoCAD product was already successfully launched.


The following message may follow:

AutoCAD Error-abort

Error Handler Re-Entered. Exiting now. 
AutoCAD Error-abort Error Handler Re-Entered. Exiting now.
 

Also, the following may be observed:

  • The program is missing Tool Palettes and Ribbons.
  • The drawing may briefly open and then crash.
 

Environment:

  • Windows 10
  • Windows 11

Causes:

  • Too long file path

  • Corruption in the AutoCAD user profile.

  • Corrupted installation of AutoCAD

  • Corruption of AutoCAD SPDS add-on module. (designed to support drawings in compliance with the requirements of the Russian system of standards for construction design documentation)

  • Operating System: the system itself (like corrupt installation of OS or some components like .NET Framework) or user profile.

  • Windows text editor enabled.

  • EVENT VIEWER shows Microsoft-Windows-PerfProc (PerfProc) Event ID 2002.

  • Insufficient Windows privileges.

  • Missing AutoCAD updates. 

Solution:

File path length:

  • Place the file in a folder to make the path shorter.
  • Create a mapped drive that contains a path of the path. So the path to open the file will be shorter.

Product Updates

Install the latest product updates from Autodesk Account.

Reset AutoCAD user profile:

How to reset AutoCAD to defaults.

Clean uninstall and reinstall of the software:  

  1. Perform a Clean Uninstall of the Autodesk product.
  2. Reinstall the product.

Operating System:

  • Fix a corrupted User Profile on Windows.
  • How to remove and reinstall the Microsoft .NET Framework.
  • How to remove and reinstall Microsoft Visual C++ Redistributable packages.
  • If the preceding suggestions do not resolve the issue and the issue is environment-specific, then it might be necessary to reimage the workstation or reinstall the operating system.
  • EVENT VIEWER shows Microsoft-Windows-PerfProc (PerfProc) Event ID 2002
    • This error might be caused by one of the following conditions:
      • The list of counters is corrupt.
      • The Remote Registry service is not running on a remote system.
      • The File and Printer Sharing firewall exception is not enabled on a remote system running Windows Vista.
      • The application is running as a user with insufficient privileges.
    • Run SFC/scannow to correct possible corruptions.  Attempt to open Autodesk product.  If this fails to proceed to the next step. 
    • To check if the Remote Registry service is running:
    1. On the destination system, click Start.
    2. In the Start Search text box, type compmgmt.msc, and then press ENTER. Microsoft Management Console (MMC) will start.
    3. In the navigation tree, expand Services and Applications and click Services.
    4. In the Services list, scroll down and click Remote Registry.
    5. Check to see if the status of the Remote Registry service is Started. If it is not, follow the steps in the section titled "Enable the Remote Registry service" to resolve the error.

Autodesk Folder Permissions:

Check graphics driver:

Disable, update, or uninstall the graphics driver by doing the following:

  1. Open the Device Manager by entering "Device Manager" in Windows Search. 
  2. Click the + or > symbol next to the Display adapters option in the list.
  3. Right-click the onboard graphic video card.
  4. In the pop-up menu that opens, select the Disable or Uninstall device option.
  5. Update graphics driver to the latest version.
  6. Ensure that the high-performance graphics card will be used: How to configure Autodesk software to use high-performance graphics

Some security software may make it necessary to disable InfoCenter:

  1. Press 'WINDOWS-R' on the keyboard to bring up the Run window, enter REGEDIT, and click 'OK'.
    Navigate to and select the following folder:

    "HKEY_CURRENT_USER\Software\Autodesk\AutoCAD\Rxx.x\ACAD-xxxx: 40x\InfoCenter"

  2. This path is unique for each version of AutoCAD. You can see what 'ACAD-xxxx' refers to by selecting the path and then looking at the keys on the right pane of the Registry Editor. One of the keys will show the install path to the associated version of AutoCAD. The '40x' number signifies the language version of AutoCAD.

  3. On the right pane of the window, double-click 'InfoCenterOn'.

  4. Enter a value of 0 (zero) and click 'OK'.

Note: If multiple versions of AutoCAD are installed, the InfoCenter needs to be disabled for each one. 

Turn off Text Cursor Setting in Windows:

  • Turn OFF the Text Cursor setting in Windows 10 and 11:
  1. Navigate to 'Windows Settings' then 'Ease of Access' then 'Text cursor'.
  2. Turn 'OFF' the text cursor.
  • Update the video driver on your system to the latest version from your graphics card manufacturer and run the installer for DirectX to make sure it is up-to-date.

Note:  Links to get an updated video driver, depending on the video card you have, and also the download page for DirectX:

Products:

AutoCAD Products;


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