Before attempting a full reinstall, try resetting the application's environment. Close all AutoCAD instances. Windows Start menu and type "AutoCAD 2021." Reset Settings to Default
A corrupted temp file can block the DLL from loading. problem loading acadresdll resource file autocad 2021
If the DLL error is related to broader Windows issues, use the System File Checker to repair system files. Before attempting a full reinstall, try resetting the
Antivirus or system protection software incorrectly flagging AutoCAD files during installation. Pathing Errors: Before attempting a full reinstall