How to fix “Install MacOS Application is Damaged”

When you reinstall macOS Sierra 10.12, High Sierra 10.13 hay macOS Mojave 10.14, you receive an error message “Install macOS Application is Damaged, Can’t be Used to Install macOS”

Install MacOS Application is Damaged

Today I will guide you How to fix “Install macOS Application is Damaged”

Step 1: When you install macOS, you disconnect Wifi/Internet

Step 2: You select Utilities =>Terminal

Utilities Terminal

Step 3: Then you type: date 010101002018

set up time when you install macOS

You do it to set up time return 01-01-2018.

  • 100210102010 Lion
  • 100610102014 Yosemite
  • 120312122015 El Capitan
  • 100510102019 Mavericks
  • 120401582018 Sierra
  • 090716112018 High Sierra
  • 100523262019 Mojave
  • 100620202020 Catalina

Step 4: You click Termial => Quit Terminal

quit terminal

Step 5: You select install macOS


You can watch this video to know how to fix “Install macOS Application is Damaged”

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