If you've tried all the solutions above and still encounter the error, contact Adobe Support with:
This error can arise from various scenarios, including: acrosup64.dll is not marked for installation
This error usually triggers via the Windows Installer (MsiInstaller) during an update, upgrade, or reinstallation of Adobe Acrobat or Adobe Acrobat Reader . It occurs because the system's registry or app data directories still contain cached references to older 32-bit or 64-bit software versions, causing conflicts within the Windows Installer engine. Technical Overview: Why Error 2753 Occurs If you've tried all the solutions above and
The most effective and widely recommended solution is using the official utility created by Adobe to resolve installation conflicts. If the installer cannot overwrite the keys governing
If the installer cannot overwrite the keys governing acrosup64.dll , manually purging Adobe keys can bypass the error. (Note: Back up your registry before making changes). Press Windows Key + R , type regedit , and hit .