I am new to Mac. I erased my mac mini by accident, it is a 2010 Mac Mini. Apple store said that don't support that. I have done serious research and gotten mixed advice on what to do, I do need the High Sierra OS which I don't have, my favor to ask is: can someone here share with me an old High Sierra so I can download and make a USB to boot my Mac. I appreciate your response in advance. My plan is to borrow my friend's mac (I only have PC at home) so that I can reformat a USB and put the Mac OS on it to use as a boot disk.