Tuesday, December 25, 2018

How to resolve "No Entry" sign at Mac startup page?

Software Required

- macOS High Sierra


Problem

  • Update my Mac OS (High Sierra) recently, no symptom after the OS update
  • Restart my Macbook recently, encounter Macbook unable to boot up issue
  • "No Entry" sign always show after the Apple logo
  • The system will reboot and it will keep repeating couple of times and remain shut down afterwards
Steps
  • Make sure your Mac machine is shutting down. 
  • Press "Command" + "R" key
  • Press the "Power" button to start the Mac machine
  • "Mac OS X Utilities" window will be displayed
  • Select "Reinstall Mac OS X" option, click on "Continue" button
  • Follow the steps in the wizard, you will get the your Mac machine start up to work like a charm.
Note: Reinstall Mac OS X will not cause data lost.

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