If the problem persists after a clean reinstall, it is recommended to use the (available in the installer menu) to remove all Autodesk components (like Material Libraries and Recap) before attempting a fresh installation.
Use msconfig → Selective startup, disable all non-Microsoft services. If AutoCAD works, a conflicting application (e.g., graphics utility, cloud sync tool) is blocking the DLL. autocad problem loading acadres dll resource file
Right-click acadres.dll → Properties → Digital Signatures tab. Ensure it’s signed by If missing or invalid, replace from a working AutoCAD installation or run SFC /SCANNOW (System File Checker) to rule out OS-level corruption. If the problem persists after a clean reinstall,