: A Windows update or an incomplete AutoCAD patch broke the link to the file.

: If errors persist, a "Clean Uninstall" of all Autodesk products is recommended before attempting a fresh installation.

Check Recycle Bin and antivirus/quarantine

Have you encountered the pm16.dll error? Let us know what worked for you!

Antivirus, firewalls, or User Account Control (UAC) blocking the module from loading. License/Identity Issues: Autodesk Licensing Service or Identity Manager components. Autodesk Community, Autodesk Forums, Autodesk Forum 3. Recommended Solutions