Acrosup64.dll Is Not Marked — For Installation

Right-click the .exe file and extract its contents using 7-Zip into a new folder. Open the extracted folder and find the file. Right-click AcroRead.msi and select Install .

Temporary or local configuration files prevent the updater from executing properly. 4 Methods to Resolve the Error 1. Use the Official Adobe Acrobat Cleaner Tool

Locate the folder. If it exists, right-click and delete it. acrosup64.dll is not marked for installation

The Windows Installer engine holds cached MSI data that clashes with the new software.

Corrupted or outdated registry keys point to DLL files that no longer exist or cannot be overwritten.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

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.

How to Fix "acrosup64.dll is not marked for installation" (Error 2753) Temporary or local configuration files prevent the updater

This installation error stops the process immediately, leaving your PDF software corrupted or unusable. It typically happens because of orphaned files from previous installations, corrupted setup files, or mismatched registry keys. What Causes Error 2753?

Open Revo Uninstaller and select or Adobe Reader from the list. Click Uninstall .

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