Reinstall Mac OS Sierra Error

Reinstall Mac OS Sierra Error

While reinstalling the Mac Sierra version operating system on your computer, an error might occur due to various reasons. To resolve the Reinstall Mac OS Sierra Error, carry out the easy guidelines mentioned on this web page.

  • Step 1:Before starting the installation process of macOS Sierra, check if you have disabled the antivirus program running on the Mac computer.
  • Step 2:If needed, you can uninstall the antivirus or firewall program from the Mac computer.
  • Step 3:Press the Power button and hold the Shift key on the computer’s keyboard at the same time.
  • Step 4:After you boot the Mac computer in a safe mode, try to reinstall macOS Sierra.
  • Step 5:The error might also occur if the Mac computer has no enough space.
  • Step 6:Turn off the Mac computer and then turn it on after ten seconds of an interval.
  • Step 7:Start the Mac computer in safe mode by pressing the Shift key on the computer’s keyboard.
  • Step 8:To check the storage space, choose the About This Mac option from the Apple menu and click the Storage option.
  • Step 9:Delete all the unnecessary files to free up the storage space. Instead of deleting files, you can move them to the external hard drive.
  • Step 10:Try to install macOS Sierra again and check if the error has been resolved.
  • Step 11:Check if the Mac computer is connected to high-speed internet.
  • Step 12:Also, make sure the date & time settings are correct. If not, choose the System Preferences option from the Apple menu and click the Date & Time option.
  • Step 13:Click the Clock tab and type your password if prompted.
  • Step 14:Select the checkbox beside the ‘Set date and time automatically’ option.
  • Step 15:Delete the macOS Sierra installer and download it again.
  • Step 16:Open the Finder application on the Mac computer, find the macOS installer and move it to the Trash or Bin folder.
  • Step 17:Check if the error has been resolved. If not, reset the NVRAM as per the instructions given below.
  • Step 18:After you restart the Mac computer, press the Command, Option, P, and R keys at the same time on the keyboard.
  • Step 19:This will reset the non-volatile RAM.
  • Step 20:If the Reinstall Mac OS Sierra Error persists, get assistance from our technical experts by clicking the Call button provided below.