![]() If you don’t, use a user account that has administrator rights. Follow the instructions carefully.Įnsure you are logged on with an administrator account. You can also see if El Capitan will run properly on your computer by viewing the installer’s compatibility with your operating system. Here are some tips to fix corrupted installer for El capitan. To resolve the issue, redownload the installer. Having problems installing OS X El Capitan? If your installation process is interrupted, it might be because your installer is corrupt. If you accept them, you’ll need to click “Accept” to install El Capitan. ![]() Next, you’ll need to read the terms and conditions of El Capitan. If you’re not logged in with an Apple ID, you’ll be asked to confirm that you don’t want to log in with it. You’ll also need to set up an Apple ID and turn on Find My Mac before installing the new OS X. After a while, you’ll see the El Capitan desktop. Clicking on the red badge will open the App Store. The App Store icon is located in the Dock. However, if you’re installing El Capitan on an older computer, the first step is to update all your applications. The latest version of OS X requires newer hardware, so you may need to upgrade your Mac’s hardware. The most common cause of the error message “Error message when installing El capitan” is an old mac. In this case, you may have to reinstall MacOS to fix the error. This may damage some files in the operating system. If this method doesn’t work, try holding the power button for a few seconds to force the shutdown. To restart your Mac, select the Apple menu and then click “Restart”. Sometimes, the most simple fix is to restart the mac. The cause of this error may be different for every user. But if you get the error message every time you run the installer, you may have a problem that’s more complicated than a simple download. If you still see this error message, you may want to reinstall El capitan. You can fix the problem by re-downloading the installer. The installer was corrupted or tampered with during the download. If you are booting the El Capitan installer you want to erase the physical drive as GUID partition and MacOS Extended (Journaled).You’re running into an Error message when installing El capitan. If you are booting the Catalina installer you want to erase the physical drive as GUID partition and APFS (top option). The physical drive should appear as something like "Apple SSD. With later versions of macOS (10.13+) you first need to click on "View" within Disk Utility and select "Show All Devices" before the physical drive appears in the left pane of Disk Utility. Once you boot to the online installer whether it is Catalina or El Capitan you will need to select and erase the whole physical drive. You may have to reset the date and time after the PRAM reset. I've found some computers will only boot to the oldest version of the macOS installer. ![]() Then try booting into Internet Recovery Mode using Command + Option + R to try to boot to the online Catalina installer. It is a shame Apple is making this so much harder than it should be.įirst try an SMC reset and a PRAM reset (hold the PRAM reset for at least three chimes so it activates several times). Instead simply Quit and shutdown the computer. ![]() When the installation is completed the system will boot automatically. This should install the original version of macOS that was installed at the factory. Select Install OS X and click on the Continue button.Quit Disk Utility and return to the Utility Menu.Click on the Apply button, then click on the Done button when it activates.Set the Format type to APFS (SSDs only) or Mac OS Extended (Journaled.).Click on the Erase button in Disk Utility's toolbar.When Disk Utility loads select the target drive (will be the out-dented entry) from the side list.Select Disk Utility and click on the Continue button.The Utility Menu will appear in from 5-20 minutes.Immediately after the chime hold down the (Command-Option-Shift-R) keys until a globe appears. If possible back up your files before proceeding. Internet/Network Recovery of El Capitan or Later on a Clean Disk Follow the instructions here: Factory reset of your Mac - Apple Support.
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