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.
. It indicates a conflict where the installer script references a file that the system believes is already incorrectly present or is not designated for the current installation phase. Core Causes Corrupt Registry Entries acrosup64.dll is not marked for installation
Third-party services (antivirus, firewalls, system optimizers) can lock or hide acrosup64.dll from the installer. If the native Windows uninstaller continues to fail