

We will go through both of them, so just follow through. In case you can’t, don’t worry as you can still achieve through the macOS Recovery menu. First, if you are able to boot into your current version of macOS, you can just go to the System Preferences and do it from there. Now, there are two ways that you can do this. That way, the certificate will still be valid and you will be able to complete the installation. As it turns out, you will have to change your date and time to the time when you actually downloaded the installer. The first thing that you should do when you face the error message is to change your date and time. Method 1: Change Date and Time Through Terminal
El capitan mac os cd install#
With the causes of the error message now out of the way, we can get into the different methods that you can implement to install OS X El Capitan successfully. As a result, you will have you redownload the installer to fix this issue.
El capitan mac os cd download#
In case the download process was interrupted or interfered with, it may result in the said error message.

While that can be the case in some scenarios, it does not always hold true. This Copy of the Install OS X El Capitan Application Can’t be Verified Error Message The error message suggests that this copy of the installer may be corrupted due to which the issue is occurring. This error message occurs when your Mac device reboots in order to begin the installation phase. One of the errors that users face while upgrading to the OS X El Capitan is the “ This copy of the Install OS X El Capitan application can’t be verified“. However, when the installation does not go as planned, it can become tedious especially if you are aware of what the error message means. Installing a new version of the macOS operating system is always exciting and intriguing.
