How do I download Sierra installer?
Download the macOS Sierra installer Launch the App Store app, then look for macOS Sierra in the store. (Here’s a link.) Click on the Download button, and your Mac will download the installer to your Applications folder. If it automatically launches after download, quit the installer.
Can I still download Sierra?
Is Mac OS High Sierra still available? Yes, Mac OS High Sierra is still available to download. I can also be downloaded as an update from the Mac App Store and as an installation file. Compatibility is very similar to Mac OS Sierra and requires a Mac from late 2009.
How to install macOS High Sierra update again?
Hold Power until your Mac shuts down > Turn your Mac on and hold the Shift key > Release Shift when the Apple logo appears > The Mac shall be booted into the Safe Mode. Then try to install macOS 10.13/10.13.4 update again.
What to do if you have a problem installing high Sierra?
If you are still having problems with installing High Sierra, you can try installing it from an external drive. Once everything is updated, run Disk Utility. After you have successfully installed High Sierra, we suggest you run Disk Utility to see and correct any issues that might have caused the installation problem.
How to clean install of macOS Sierra?
Clean installation of macOS 10.13/10.13.4 update Connect a USB bootable drive to your Mac and restart the Mac by holding Option until you hear the reboot tone. Select the disk called Install macOS Sierra in the drive list that appears on the screen.
Can you install macOS Sierra on a MacBook Pro?
I understand you are trying to download and install macOS Sierra on your MacBook Pro, but after several attempts, the application won’t install. Based on your model and the fact that you have OS X El Capitan currently on your system, macOS Sierra should be able to install. Are you seeing any errors when you try?