Acrosup64.dll Is Not Marked: For Installation _top_

Navigate to this specific path: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\ . Look through the alphanumeric subkeys (like 68AB67CA... ). Check the string on the right side of each key.

Adobe Acrobat / Adobe Reader (64-bit versions) on Windows acrosup64.dll is not marked for installation

Download the official from the Adobe website. Run the executable file and accept the license agreement. Select your product type (Acrobat or Adobe Reader). Check the string on the right side of each key

Run your Adobe installer again until it crashes with Error 2753. Select your product type (Acrobat or Adobe Reader)

Note: If AppData is hidden, select "Show hidden files, folders, and drives" in File Explorer options.

Microsoft provides a specific tool for when programs won't install due to corrupted registry keys.

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 .