10–20 minutes using the cleaner tool.
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
Security software may mistakenly flag acrosup64.dll as a threat and block its registration. 💡 Troubleshooting Tips
Why this works: The Cleaner Tool removes orphaned registry keys and MSI references that cause the "not marked for installation" flag.