Acrosup64.dll Is Not Marked For Installation ((link)) -

If the cleaner tool doesn't work, manual removal of hidden folders and registry keys is often necessary. 1. Delete AppData Folders Press Win + R , type %AppData% , and hit Enter. Delete the folder.

Clear the user AppData folders: C:\Users\%username%\AppData\Local\Adobe and LocalLow . : acrosup64.dll is not marked for installation

If you are comfortable with the Windows Registry, you can search for and delete specific product keys that are stuck. and navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Installer\Products\ Look for keys starting with If the cleaner tool doesn't work, manual removal

Here is a straightforward guide to getting your software back up and running. What Causes This Error? If the cleaner tool doesn't work