I tried “Reinstall macOS” but it just won’t allow me to download the macOS installation files. Make sure you backup any important files first). (there is no turning back once you do this. Select Erase the disk and all data will be deleted. You will be presented with the macOS Utilities screen. Restart and at the same time press COMMAND + R keys. Yes, a simple search revealed that you can do a complete clean install of your MacBook. I bought a Seagate 1TB portable disk to backup the data for him using Time Machine (around 500GB of space required). Then the nightmare came…or should I say…learning process.

Of course, because I asked about it, then only he is willing to sell to me. He prefers using his iPad Pro for his work, so selling this MacBook Pro away. I bought it from a friend at a good price. Why “New”? Because it is not an new unit but pre-owned. Why “New”? Because it is actually a pre-owned unit from a friend. I have owned a MacBook, MacBook Air, but never a MacBook Pro. Should I say…this is my FIRST MacBook Pro.

High sierra macbook air early 2015