How to reinstall macOS

There are a few reasons why you might want to reinstall macOS (or even Mac OS X). Perhaps your Mac is working erratically and you think that a clean install of the operating system might fix the issue.Alternatively, you might be planning on selling your Mac, or passing it on to a member of the family (in which case, you need to wipe it first andreturn your Mac to factory settings).It is even possible to reinstall the version of the macOS that your Mac shipped with – which might enable you