![install - Installing macOS on a new HDD from USB drive stuck on grey screen with Stop sign - Ask Different install - Installing macOS on a new HDD from USB drive stuck on grey screen with Stop sign - Ask Different](https://i.stack.imgur.com/GOVed.jpg)
install - Installing macOS on a new HDD from USB drive stuck on grey screen with Stop sign - Ask Different
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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'
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