When launching AutoCAD (or DWG TrueView), it shows the following message and may or may not finish starting up:
A display driver file (.hdi) is missing or has been corrupted. The program will be closed.
Uninstalling and reinstalling AutoCAD should fix this error. However, first try resetting AutoCAD to defaults (see
How to reset AutoCAD to defaults
). Try also updating your video driver and running the installer for DirectX to make sure it is up-to-date:
NVIDIA driver downloads
AMD driver downloads
Intel Driver Update Utility
DirectX End-User Runtime Web Installer
If above does not resolve the error, then uninstall and reinstall AutoCAD. Consider also the possibility of your AutoCAD installation files being damaged or incomplete. It may be necessary to download a new install package, especially if the .hdi driver error persists after reinstalling once. Additionally, make sure your video driver is up-to-date with the latest version from your graphics card manufacturer. It is possible that AutoCAD's driver files are encountering a bad interaction with the video driver in the operating system, which is causing the .hdi driver error.
To work around the .hdi driver error, you may turn off hardware acceleration within AutoCAD:
How to enable or disable hardware acceleration in AutoCAD
If AutoCAD will not launch due to the .hdi driver error (and assuming none of the above fixes help), you can use the /NOHARDWARE startup switch:
Starting AutoCAD-based products without hardware video acceleration
hanging Graphics Cards, after your Autodesk software initial installation could also cause this issue.
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