Need more information.
What was the OS that was previously on?
Were you trying to install macOS Sierra from an installer made onto a USB thumb drive or other source? Or are you trying to install macOS High Sierra?
Need more information.
What was the OS that was previously on?
Were you trying to install macOS Sierra from an installer made onto a USB thumb drive or other source? Or are you trying to install macOS High Sierra?
What are you seeing? Error message(s)?
i have erased my earlier mac operating system, but i started to install the new macOS sierra. it is not installing... can you help me out?? please