The error message "acrosup64.dll is not marked for installation" (often appearing with Error 2753 ) typically occurs when installing or updating Adobe Acrobat Adobe Reader
If a previous setup fails, crashes, or is partially uninstalled via Group Policy (GPO) or SCCM, corrupted registry keys block the current transaction. The Windows Installer engine views the target .dll as already owned or orphaned by a "lesser" or different package ID, resulting in the script aborting with the message: "The file 'acrosup64.dll' is not marked for installation." Step-by-Step Solutions to Resolve the Error
Press Win + R again, type %appdata% (to open the Roaming directory), and delete the corresponding Adobe folders there as well. Empty your Recycle Bin. 3. Wipe Broken Product Guids from the Registry acrosup64.dll is not marked for installation
Attempting to install a 64-bit patch over an older 32-bit baseline installation of Adobe software.
Once you have resolved the immediate error, following these practices will help you avoid encountering it again in the future. The error message "acrosup64
If this guide helped you, consider sharing it with others who encounter the same cryptic message—they’ll thank you for saving their sanity.
How to Fix "acrosup64.dll is not marked for installation" (Error 2753) If this guide helped you, consider sharing it
Download a fresh, offline installer for Adobe Reader from the official Adobe website and install it. Solution 2: Perform a Clean Manual Uninstallation
Encountering a cryptic error message during software installation or uninstallation can be frustrating. One such error that plagues users—particularly those working with Adobe Creative Cloud applications (like Photoshop, Illustrator, or Acrobat) on 64-bit Windows systems—is:
If the native Windows uninstaller continues to fail with the acrosup64.dll error, use a third-party uninstaller to force-remove the program and wipe leftover registry entries. Download the free version of Revo Uninstaller.