Once you have AutoCAD 2021 running again, take these preventative steps:
If the Repair option does not work, a clean reinstall is usually required to restore the missing DLL. problem loading acadres.dll resource file autocad 2021
Open your antivirus dashboard, locate the Quarantine or Logs section, restore acadres.dll, and add the entire C:\Program Files\Autodesk folder to the exclusion list. Once you have AutoCAD 2021 running again, take
Restart AutoCAD after restoring the file. If the Repair option does not work, a