Acrosup64.dll Is Not Marked For Installation: Exclusive

Corrupted or outdated registry keys point to DLL files that no longer exist or cannot be overwritten.

Download the full standalone offline installer from the Adobe Acrobat Reader DC Distribution page. Run the new installer. 2. Manually Delete Adobe Folders

Once complete, run the update file ( .msp ) inside the same folder to update the software to the latest build. Summary Troubleshooting Checklist Action Item Why it helps Safely removes corrupt installation profiles. Delete AppData Folders Cleans out bad cached files preventing the update. Third-Party Uninstaller Removes orphaned registry entries. Manual Extraction Bypasses faulty bootstrapper installers. acrosup64.dll is not marked for installation

Download the official tool from the Adobe Reader and Acrobat Cleaner Tool .

Locate the folder. If it exists, right-click and delete it. Corrupted or outdated registry keys point to DLL

If you are trying to install, update, or uninstall Adobe Acrobat or Adobe Reader, you might encounter this error message:

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 Delete AppData Folders Cleans out bad cached files

Open the Run dialog box again, type %localappdata% , and press Enter. Delete the folder found inside the Local directory.

Run the executable and follow the prompts to remove both and Reader . Restart your computer.