Today I want to install previous version of Quicktime player on my mac. After move all the application and library references to trash still can’t install. The error show “Already had newest version, this version can’t install”. So spend almost 3 hrs at Google and finally found one software call “Pacifist“. Drag and drop older version to Pacifist and overwrite all the file. Very useful and will safe your time … Just try it !!!
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