I have a mid 2011 iMac. I have 16 gb of memory and plenty of unused storage space. I have been trying to upgrade from macOS 10.12 (Sierra) to macOS 10.13 (High Sierra). I can get to the APP store, but it doesn't allow me to GET. All it says is FREE. Any help in upgrading will be GREATLY APPRECIATED. I need the upgrade to run some music notation software. Thank you.
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How to upgrade from macOS 10.12 to macOS 10.13
- Thread starter jeffdaniel61
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