Acrosup64.dll Is Not Marked For Installation 2021 -
Before running a new installer, properly uninstall the old version through the Control Panel or the Cleaner tool.
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
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 . acrosup64.dll is not marked for installation
to wipe any leftover registry keys or files from failed previous installations. Use the Offline Installer
This article provides a comprehensive guide to resolving this issue, ranging from simple cleaning tools to manual registry edits. What is acrosup64.dll? Before running a new installer, properly uninstall the
Understanding the Acrosup64.dll Installation Error The error message typically occurs during the installation, patching, or updating of Adobe software, most notably Adobe Acrobat or Adobe Reader. This specific error indicates a corruption or a conflict within the Windows Installer (MSI) database, where a required 64-bit support library cannot be properly registered or deployed on the system.
and specific registry keys is often required when automated tools fail. Commonly Recommended Solutions Open the extracted folder and find the file
: The installer thinks a "lesser" version is still installed because of orphaned registry entries. Corrupted DLL acrosup64.dll
Launch the program and select your specific software track (Acrobat or Reader).
The 32-bit installer tries to reference a 64-bit component ( acrosup64.dll ).