Problems updating mac os with windows mobile dating networks
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Some users report errors trying to download mac OS High Sierra from the Mac App Store.
If mac OS High Sierra will not proceed with installation on the Mac, usually with a notification along the lines of “mac OS High Sierra cannot be installed”, it is likely because the Mac is not compatible with High Sierra.
You can check the compatibility list for Macs that support mac OS High Sierra here, generally speaking if the Mac runs Sierra and is reasonably modern, it should work.
If the installation is truly frozen, you may need to reinstall mac OS High Sierra via Recovery Mode, by rebooting the Mac and holding down Command R and then choosing to reinstall mac OS.
This is rare, but there are some reports the installation of High Sierra fails.
If you are unable to reinstall mac OS High Sierra, and the Mac will not boot up normally, you can also reboot the Mac and hold down Command Shift Option R and choose to reinstall mac OS over internet recovery, which will reinstall the version of Mac OS that shipped on the Mac instead.
If the Mac will not boot up after resetting NVRAM, you likely need to reinstall the system software.
You may be able to do this with a High Sierra boot drive if you have one available, otherwise you can use recovery mode to reinstall.
Quit the installer to restart your computer and try again.” or, rarely, more obscure error messages with “mac OS could not be installed on your computer” or “An error occurred while verifying firmware.
Quit the installer to restart your computer and try again.” If you get package missing errors or damaged application errors, delete the “Install mac OS High Sierra.app” from the /Applications/ folder on the Mac, then re-download the installer from the Mac App Store.
If the installation has completely frozen on a blank screen, you may need to reinstall mac OS High Sierra.