If deploying via GPO or SCCM, use an MST file to suppress online updates and upselling, which can trigger acrosup64.dll conflicts. Prevention: Avoid Future Acrobat Update Errors
Download the official tool from the Adobe Reader and Acrobat Cleaner Tool .
This error happens because the gets confused by corrupted registry keys, incomplete uninstallation leftovers, or conflicts between old 32-bit versions and newer 64-bit packages. The setup wizard halts completely because it cannot safely overwrite or register the critical installation support file acrosup64.dll . What Causes the acrosup64.dll Error?
directories can prevent the Windows Installer service from correctly handling the DLL. Detailed Troubleshooting Solutions 1. Use the Adobe Acrobat Cleaner Tool The most effective first step is to use the official Adobe Acrobat Cleaner Tool acrosup64.dll is not marked for installation
acrosup64.dll is an file. It is responsible for handling updates for 64-bit Adobe Acrobat Reader applications. When the installer, or the Windows Installer registry, becomes corrupted, it fails to recognize that this file should be present or removed, resulting in the "not marked for installation" error.
The phrase "not marked for installation" is a generic Windows Installer error. It occurs when the installer attempts to process a component but the installation logic dictates that the component should not be installed, often due to:
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 : If deploying via GPO or SCCM, use an
Previous incomplete uninstallation processes or corrupted setup packages frequently leave behind broken registry keys and orphaned files.
Close the Command Prompt and try installing the software again. Method 4: Clear the Windows Temp Folder
Based on user reports and technical analysis, the primary causes include: The setup wizard halts completely because it cannot
The error (often labeled as Error 2753 ) typically happens because of corrupted leftovers from a previous Adobe installation or a conflict between 32-bit and 64-bit components. The Most Effective Fix: Full Clean & Manual Install
Here’s a technical write-up for the error “acrosup64.dll is not marked for installation” .
Then retry Adobe installation.
After completing these steps, restart your system and try the installation again.