I have a 13" MacBook Pro (retina) late 2013.
I downloaded Install macOS Sierra from the App Store. I ran the installer when it appeared after the download was complete. After many minutes I got a message that the install failed.
"Mac OS could not be installed on you computer. An internal error has occurred. Quit the installer to restart."
I do not have any antivirus software running.
I tried again after booting from my cloned drive with the MacBook internal drive as the target for the installation. Same result.
I tried again after booting from my cloned drive in Safe Boot with the internal drive as the target for the installation. Same result.
Help would be appreciated.
Thank you
MacBook Pro (Retina, 13-inch, Late 2013), OS X El Capitan (10.11.6), 2.4 Ghz Intel Core i5, 8GB Ram
