Download the official tool from the Adobe Reader and Acrobat Cleaner Tool .
Did these steps resolve the installation error, or are you deploying Adobe Acrobat via across a network? error the file acrosup64.dll is not marked for installation acrosup64.dll is not marked for installation
Locate the folder. If it exists, right-click and delete it. Download the official tool from the Adobe Reader
The Windows Installer engine holds cached MSI data that clashes with the new software. acrosup64.dll is not marked for installation