The error "acrosup64.dll is not marked for installation" (often labeled as Error 2753) typically happens because of corrupted leftovers from a previous Adobe installation or a conflict between 32-bit and 64-bit components. The Most Effective Fix: Full Clean & Manual Install
Download the full standalone offline installer from the Adobe Acrobat Reader DC Distribution page. Run the new installer. 2. Manually Delete Adobe Folders
Did this happen during a Windows update or a manual installation? acrosup64.dll is not marked for installation
This message typically halts the installation process, rolls back changes, and leaves software either partially installed or completely missing. Before you panic or consider reinstalling your entire operating system, understand that this is a known issue with a set of specific, fixable causes.
"acrosup64.dll is not marked for installation." The error "acrosup64
Registry Check: Ensure there are no lingering keys for older versions (like Acrobat XI) under HKEY_LOCAL_MACHINE\SOFTWARE\Adobe.
If it fails with the same error, use the Advanced Scan option inside Revo to scan for leftover registry keys and files. Before you panic or consider reinstalling your entire
: It generally signifies that the installer is attempting to place a file that it believes is already present or was incorrectly registered by a prior installation. This often happens after a system crash, an incomplete uninstallation, or when moving files to a new drive (like an SSD). Reliability of Official Fixes