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Fixing Mac OS X Install Errors “can't be verified” and “error occurred while preparing the installation” | OSXDaily
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SOLVED] This copy of the Install macOS High Sierra.app application is damaged… | by Aaron Medina | Medium
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Installing macOS or OS X: What to do when 'the installer payload failed signature check' or 'this copy of the install OS X application cannot be verified' | Macworld
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