Acrosup64.dll Is Not Marked For Installation Here
Run the tool and select or Acrobat to remove all traces of previous versions, including registry keys and residual DLL files like acrosup64.dll . Manually Delete Residual Folders :
When an installer checks for this file’s presence or registration state, the "not marked for installation" flag indicates a in Windows Installer’s internal database. acrosup64.dll is not marked for installation