How to Fix the "acrosup64.dll is not marked for installation" Error
Disable the Update Service: If the error pops up during daily use (not just installation), go to Services.msc, find "Adobe Acrobat Update Service," and set it to Disabled to stop the broken update loop.
The error "acrosup64.dll is not marked for installation" is a classic example of a Windows Installer state error. While it can be frustrating, it is rarely a sign of a virus or hardware failure. In 90% of cases, using the official Adobe Acrobat Cleaner Tool to remove the corrupted install and reinstalling the software fresh will permanently resolve the issue. acrosup64.dll is not marked for installation
The story of acrosup64.dll not being marked for installation serves as a reminder that:
Several factors can contribute to the occurrence of this error. Some of the possible causes include: How to Fix the "acrosup64
file (part of the Adobe Support components) may have been flagged incorrectly in the installation script. Code Signing Issues
What does the "acrosup64.dll is not marked for installation" error mean? Run System File Checker (SFC) scan : What
Warning: This step involves editing the Windows Registry. Incorrect edits can cause system instability. Proceed with caution.
