unable to install Flash Player on Mac - certificate not trusted

Hi,

I branched your post to a new topic as the error causing the failure is not related to the topic you posted to.  Looking at the FlashPlayerInstallManager.log file, the error is:

<excerpt>

2016-10-04 20:40:27 -0400   IM: [install started]

installer: Package name is Adobe Flash Player

installer: Certificate used to sign package is not trusted. Use -allowUntrusted to override.

</excerpt.

'installer' is a macOS utility app used to extract and install files.  Based on this error, the Installer utility app is erroneously detecting the Flash Player signing certificate is not trusted.  This is an issue with your system, not the installer itself.  Please see  https://forums.adobe.com/thread/1651963​ for assistance.  If this doesn't work, I would recommend contacting Apple for assistance as this is an issue with your system, and not Flash Player.

You can verify the Flash Player is correctly signed by doing the following:

- Mount the Flash Player installer DMG

- Launch Terminal (/Applications/Utilities/Terminal.app)

- type:  codesign -vvd <path to Installer.app>

     - you can drag and drop the installer app onto the Terminal window to get the entire path

- hit enter key

- Result: Amongst other output, the following Authority info will display, indicating the installer is signed by Adobe:

  Authority=Developer ID Application: Adobe Systems, Inc.

  Authority=Developer ID Certification Authority

  Authority=Apple Root CA

--

Maria