Acrosup64.dll Is Not Marked: For Installation ((free))

10. Manually edit Registry 11. Restore Windows to earlier point 12. Contact Adobe Support

Follow these troubleshooting methods in order to resolve the error and successfully complete your Adobe installation. Method 1: Use the Adobe Acrobat Cleaner Tool

Understanding the cause of this error requires a look at how Windows manages software installations. When you install a program like Adobe Acrobat, the Windows Installer uses a database of instructions to determine which files go where. The "not marked for installation" flag occurs when there is a mismatch between the version of the software already on the disk and the update being applied. This often happens if a previous installation was interrupted, if there are leftover registry keys from an older version, or if the user is attempting to install a 32-bit patch over a 64-bit core application. acrosup64.dll is not marked for installation

The root cause boils down to Windows Installer ( msiexec.exe ) database corruption. When Adobe updates fail mid-process, or a prior version is improperly removed, orphaned entries stay behind in the system.

Download the full standalone offline installer from the Adobe Acrobat Reader DC Distribution page. Run the new installer. 2. Manually Delete Adobe Folders The "not marked for installation" flag occurs when

Navigate to the following path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

These fail because they address execution privileges, not installation metadata . Purge Leftover Adobe Folders Manually

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

Open the folder and delete any subfolders named Acrobat or Reader .

: Network deployments via Group Policy Objects (GPO) or System Center Configuration Manager (SCCM) fail mid-process, corrupting the target machine's MSI database state. Step-by-Step Fixes for Error 2753 1. Run the Adobe Acrobat Cleaner Tool

Click and allow the utility to remove deep system directories and keys. Restart your computer immediately. 2. Purge Leftover Adobe Folders Manually