I made a bootable usb with transmac software in windows PC, since I had no access to other MacBook, bootable usb with macOS Sierra dmg file And l hold down the option key while powering on the MacBook it doesn’t show or give me the boot options from usb it directly takes me to internet recovery and after that the same process. After that when I start my MacBook it shows a folder with question mark on it and won’t start, so I googled around and did the cmd + option + R key and it brought me to the internet recovery after which I landed on a page called macOS Utilities and form there through disk Utility I erased my drive to instal a fresh copy of OS X through internet recovery but when I try to install it says “the information on the recovery server is damaged “ I tried like 15 to 20 times through internet recovery it’s still doesn’t work and gives me the same “ the information on the recovery server is damaged”. This bug appears on all versions from High Sierra, Mojave.
Are you sure you want to open it? Click on Open and it should successfully run.Last I had done a factory reset on my MacBook Air 2017 model and while I was installing Mac OS High Sierra the installation didn’t complete, I don’t know why and how. In simpler terms, the error is because the macOS installation certificate expired on October 24, 2019. If you now try relaunching you Installed App, you will be presented with the message "Application.app" is an app downloaded from the Internet.
Remember to click on the padlock symbol again to disable any further changes. You can change Gatekeeper settings by clicking on the padlock on the lower-left corner of the system preferences box, entering your admin password, and then selecting the new setting. If you do have the need to reactivate Gatekeeper, then simply enter the following Terminal command: If you now open System Preferences, you will see that the missing 'Anywhere' option has been restored.
Enter the following Terminal command, entering your admin password when prompted: Make sure System Preferences is not running
How to fix Application" is damaged and can't be opened errorĪll is not lost as this can be restored by performing a relatively simple Terminal command as follows: Upon rebooting into the installer, and selecting 'Install macOS' in the macOS Utilities window, I get the message 'This copy of the Install macOS Sierra application is damaged, and can't be used to install macOS. I created the installer through Terminal which was successful. The specific section is under 'Allow apps downloaded from' and previously we had the options of 'App Store', 'App Store and identified developers', and 'Anywhere' - but now the 'Anywhere' option has been removed. Okay, so I just got a fresh download from the app store of macOS Sierra. For supported games Compatibility Issues with Carbon Copy Cloner on Big Sur. If you trying to install macOS High Sierra / El Capitan on an older like 2010 / 2011 or older. 2020 Install Big Sur on Unsupported Mac with Patched Sur Install macOS Big. The graphical user Interface of Gatekeeper settings can be found in System Preferences -> Security & Privacy -> General. I hope this post will solve the issue if you run into it. Apple does not want you to Install and run apps from unidentified developers. Its job is to verify that downloaded Apps are signed correctly and therefore reducing the risk of malware. The problem lies with Gatekeeper in Mac OS Mojave, which is a security feature that is Integrated within the Mac OS. Mac OS Mojave Gatekeeper is not your friend "Application.app" is damaged and can't be opened. The App will install ok, but when launching it you will be presented with the following error message:
Input macOS high sierra or macOS Mojave in the Name field, select Mac OS X in the Type drop-down list, select Mac OS X(64-bit) in the Version drop-down list, then click the. Specifics if macOS Sierra 10.12.4 (or later) has never been installed on your Mac: It’s recommended that you use the Commend + R keyboard combination to get to the Recovery Mode screen this ensures that the new installation won’t be connected to your Apple ID, which is the preferable option if you are selling or giving away the computer. Open VirtualBox, click the New button to create a new virtual machine. 2.1 Create macOS Virtual Machine In VirtualBox. Like me, If you have recently upgraded to Apple's latest Mac OS Mojave 10.14, or perhaps you are still on High Sierra or even Sierra, you might have had an error Installing third party Apps. Install Mac OS On VirtualBox Virtual Machine Steps.