0 Replies Latest reply: Jan 12, 2015 12:50 PM by Mike M RSS

    How to perform a "clean install" of Flash Player in Mac OS X

    Mike M Community Member

      To start, Please follow the Uninstall instructions posted here: Uninstall Flash Player | Mac OS


      Download the offline installer posted at the bottom of the Installation problems | Flash Player | Mac page, in the 'Still need help' section.


      If it won't download directly, right click and "Save as"… and make note of the save location


      DO NOT mount the installer DMG or run the installer yet!

      Empty the trash


      Quit your Browser (Press Cmd+Q - Don't just close the window)


      Go to: Mac HD/Library/Internet Plugins


      Verify that the Flash Player.plugin file is not present.  If it is, trash it.


      Go to: Mac HD/Library/Application Support/Adobe/Flash Player

      Verify that the Flash Player Install Manager folder does not exist.  If it does, trash the whole folder



      Empty the trash.



      Make sure the 'Reopen windows when logging back in' check-box is NOT selected (This will "kill" all running processes)


      Before launching any apps, mount the DMG and run the installer.


      BEFORE opening any Flash content in Safari, open Safari>Preferences, and check the Security tab to make sure "Allow all other plugins" is checked.



      Message was edited by: Maria Vargas - updated link to the offline installer - added "Make sure the 'Reopen windows when logging back in' check-box is NOT selected" to the Reboot section.


      Message was edited by: Maria Vargas the location of the offline installer has changed. updated FAQ with the new location.