
This may result in MacOS Big Sur cannot be installed on Macintosh HD error. When too many people download something at the same time, the servers usually get overburdened.

Since the new updates are designed to improve the current operating systems, installing Big Sur on a device more than 5 years old will do more harm than good.

Overloaded Wi-fi network– Some software may utilize most of your Wi-Fi data which leaves no more scope for the download of this update.Crowded Servers – When too many people are downloading the software update simultaneously, it may lead to crowding at the servers, which may result in this error.Listed below are possible reasons why Big Sur installation may be unsuccessful: This guide will elaborate few troubleshooting techniques to fix MacOS Big Sur cannot be installed on Macintosh HD error.

Several users have been complaining about this error on multiple threads and platforms. How to Fix macOS Big Sur Installation Failed Error
