Longtime macOS users will know that even though the Mac has a built-in recovery partition, it's always useful to have a dedicated USB drive with a macOS installer. I am a big fan of using a tool like DiskMaker X to create them to keep around if I need to wipe a drive and reinstall macOS quickly. If you have a drive created for Mojave, Sierra, and High Sierra, know that a certificate has expired. If you are getting an error similar to 'This copy of the Install macOS Mojave.app application is damaged, and can't be used to install macOS', read on to learn how to fix it.
If you're getting the above error message when you go to install macOS, you'll likely experience some panic about what to do. Thankfully, it's an easy fix. As first reported by OSXDaily.com, a fix is quite simple.
Install Mojave using a bootable installer. If you have a Mac that didn't ship with Mojave and you don't use Time Machine to backup, you'll need to reinstall Mojave from the bootable installer we created earlier. Upgrade to mavericks from 10.8.5. Plug in the installer disk. Go to the Apple menu and choose restart, then hold down the Option key. The first idea of creating macOS bootable USB from Windows using BDU isn't like this. But there's another author who also has the same idea but use the different tools. What I mean is the idea of using 7-Zip and Paragon Hard disk Manager, the credit of reference source is goes to OSX Arena.
The cause of this error is an expired certificate, and because the certificate is expired, the 'Install macOS' app for Mojave, Sierra, and High Sierra will not run. Fortunately, there is a fairly simple solution to the 'damaged' installer problem. Mac os 13 update download.
Below are the download links for the recent versions of macOS.
Testing conducted by Apple in October 2020 using preproduction 13-inch MacBook Pro systems with Apple M1 chip, 8GB of RAM, and 512GB SSD. The Apple TV app movie playback test measures battery life by playing back HD 1080p content with display brightness set to 8 clicks from bottom. Battery life varies by use and configuration. Fan control app for macbook pro. Speed fan controller and temp monitoring for MacBook Pro Unibody (Nvidia) for Windows under BootCamp. It allows to control MacBook fans speeds depending on the CPU and GPU temperature. ATTENTION: This program is designed and tested only on MacBook Pro with NVIDIA GPU. On newer MacBooks with ATI GPU the GPU temperature is not checked.
You may need to reboot the Mac after you have downloaded the new (and valid certificate) installer application, particularly if you had already launched a version that showed the application damaged error message.
If you are new to making macOS boot drives, we've got articles to help.
Another benefit to making a new boot drive is that you'll get all of the various macOS updates that have been released since you made your last one. It'll make your installation process a lot faster if you are recovering from a dead hard drive, since you won't need to install macOS and then apply patches right afterward. While the process of repairing the 'This copy of the Install macOS Mojave.app application is damaged, and can't be used to install macOS' isn't fun, thankfully, it's easy.
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If you're using a recent MacBook Pro or MacBook Air with Big Sur and a powered USB-C hub or dock, be sure to read our coverage of macOS 11.2.2, which protects those Macs from damage caused by non-compliant USB-C gear. Thinking about starting seeds soon? Josh Centers shows how you can use a smart outlet and simple HomeKit automations to give your garden a head start. Finally, faced with issues surrounding bootable duplicates in Big Sur, Adam Engst re-evaluates his longstanding advice that a bootable backup of your Mac is an essential part of a backup strategy. With Apple making it increasingly difficult to make bootable duplicates, are they still necessary in an era of cloud computing and multiple devices? Notable Mac releases this week include CleanMyMac X 4.8, Fantastical 3.3.5, Little Snitch 5.1.1, Firefox 86, Downcast 2.9.61, and GraphicConverter 11.4.
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Some third-party, non-compliant, powered USB-C hubs and docks are bricking recent MacBook Pro and MacBook Air models. Apple has updated Big Sur to prevent the problem; the question is if Macs running Catalina or Mojave might still be at risk.
