Hi All, I have a mid-2011 iMac that I bought new. Back in those days the default OSX was Lion 10.7 Over the years I have been upgrading both hardware and OSX to get to what I am currently running: macOS High Sierra 10.13.3. Recently, I have discovered that iBooks has become corrupt, where it crashes every time I attempt to open it. I believe the only way to resolve this issue is to re-install OSX. Now..... when I press Option, Command-R on the boot, then Re-Install OSX, i find it wants to re-install OSX Lion 10.7 Do I have to start all over again and update back to where I am now?