: Download and run the tool to scrub all traces of previous Acrobat/Reader versions.
Running the standard "Repair" utility from the Control Panel often fails because the installer hits the same logic error. However, it is the recommended first step. acrosup64.dll is not marked for installation
Adobe provides a specific tool designed to resolve this exact registry state conflict. : Download and run the tool to scrub
If the cleaner tool fails, manual intervention is often required to remove persistent orphaned data. Local AppData : Navigate to C:\Users\%userprofile%\AppData and delete the folder within the subfolders. Program Files : Delete any existing Adobe folders in C:\Program Files\Adobe C:\Program Files (x86)\Adobe Registry Keys : Delete keys under HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\ that start with or are otherwise related to Adobe Acrobat. 3. Use an Offline Installer Adobe provides a specific tool designed to resolve
If the standard installation package crashes, you can manually extract the Microsoft Installer ( .msi ) file using an extraction utility like 7-Zip. Download the offline Adobe executable installer ( .exe ).