I tried to re-install macOS on my MacBook Pro (Retina, 13-inch, Early 2015) via the internet (Command+Option+R). After 5 minutes and some progress the following was shown, what does it mean?
apple.com/support does not know this error code.
MacOS – Re-installation from the internet fails with error code -2005F, what does it mean
high sierramacmacos
Related Solutions
For a short interruption, you can expect the download to resume. I might choose to power it off and start over since you might end up with a corrupt package that the OS will not install and a cryptic error message. Worse, the install may stall and you could wait a long time before giving up.
It's in your interest to get the installation over a fast internet connection (perhaps a local Apple Store) so that you don't have to do it over or wait so long in the end.
Try opening the icon in Safari then dragging it from there.
Best Answer
It looks like you need to reset your device's NVRAM. Check out Apple's documentation that explains how to do that: How to reset NVRAM on your Mac
This thread on the Apple Support Communities suggests an NVRAM (or PRAM) reset will resolve this issue. If that doesn't work, it wouldn't hurt to try an SMC reset as well.