Inventor 2026 DWG import error- DWG TrueView ‘Fatal Error: ASC Initialization failed’

October 3, 2025 Joanna Gryszka

Issue:

Inventor 2026 error importing an AutoCAD DWG file into a sketch or selectively importing the file.

DWG TrueView Error Aborting

FATAL ERROR: ASC initialization failed. Please reinstall the product.

Solution:

Clean uninstall DWG True View 2026

Clean uninstall instructions for DWG True View:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Unable-to-run-DWG-TrueView-when-opening-AutoCAD-based-software.html

Remove the following folders once DWG True View is uninstalled from Windows Control Panel:

C:\Program Files\Autodesk\DWG TrueView 2026 - English
C:\ProgramData\Autodesk\DWG TrueView 2026 - English
%localappdata%\Autodesk\DWG TrueView 2026 - English
%appdata%\Autodesk\DWG TrueView 2026 - English

Remove the following Windows Registry Keys:

HKEY_CURRENT_USER\SOFTWARE\Autodesk\DWG TrueView
HKEY_LOCAL_MACHINE\Autodesk\DWG TrueView

Reinstall DWG True View 2026 from this download:https://www.autodesk.com/products/dwg-trueview/overview

2. Clean uninstall Inventor 2026

Clean uninstall instructions for Inventor:

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Perform-a-clean-uninstall-of-Inventor.html

Other ASC component or initialization errors:

'Can't launch ASC component' error on Inventor 2026 launch: https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Can-t-Launch-ASC-Component-message-when-starting-Inventor-2026.html
'ASC Initialization failed' error opening an AutoCAD DWG from Vault: https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/FATAL-ERROR-ASC-initialization-failed-Please-reinstall-the-product-after-opening-a-drawing-in-Inventor-a-second-drawing-is-opened-in-AutoCAD-from-the-Vault-level.html

About the Author

Manufacturing Technical Support Specialist<br><br>Joanna has over eight years of experience working with Autodesk products. She started supporting core AutoCAD and network installations of all Autodesk products. She now has five years of experience with Inventor. <br> She graduated from Mechanical Engineering and has been providing solutions to clients and dedicating her knowledge to the Solution Center since then.
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