I figured my personal files like work and music plus windows partition would be on the HDD while everything else on the SSD. Once the SSD and caddy were installed I then installed a fresh copy of 10.8 onto the SSD but kept my home directory on the HDD. ![]() My DVD drive stopped working and I thought the best thing to do was to purchase a hard drive caddy and get myself on the SSD bandwagon. This was my primary drive for the longest while, I had my system, apps, games and all my personal files on here. The first was a 1TB HDD 5400 or 7200 rpm drive. I have a Macbook Pro 2011 (model number MBP 8,1) with 2 hard drives. It also explains why trying to install from a external dvd drive would sit at a black screen with a flashing cursor without actually booting. These two discoveries are important because it allowed me to understand why my Macbook Pro would either tell me that my USB key with a windows installer on it was not a bootable drive. Apple simply flags certain macs model numbers in an XML (plist) file to allow installation of Windows from a USB key.Windows 7 does not like (cannot?) be installed from an external (USB) DVD drive.Through all my reading I've found determined two things: I've read nearly every single thing there is to read on the internet about being able to install Windows 7 without an internal DVD drive on a Macbook Pro 15" running 10.8 Mountain Lion. Do not close the lid or power off your Mac until installation is complete.After two days of partitioning, formatting, editing, repartitioning, reformatting, installing and reformatting again, I've finally been able to install Windows 7 on my macbook pro. During installation, your Mac may restart, or display a blank screen for a short time.In the Updates window, locate the line that says Catalina.In the App Store, on the left side of the window, select Updates.In the menu bar, click the Apple icon to open the Apple menu.Do not close the lid or power off your Mac until installation is complete.Īfter you've gone through the preparation steps, you need to download and install the latest version of macOS. During installation, your Mac may restart, or display a blank screen short time.When this process is complete, an installer application named Install OS X El Capitan is placed in your Applications folder.Follow the on-screen instructions to perform a compatibility check, and prepare for installation.In the archive, double-click InstallMacOSX.pkg.Double-click the downloaded archive, InstallMacOSX.dmg, to view its contents.The file size is 5.8 GB, so the download may take a while, depending on the speed of your Internet connection. Download the El Capitan installer from Apple. ![]() If your Mac is running OS X Lion or Mountain Lion, follow these steps to upgrade to El Capitan. If your Mac is running Mavericks or newer, you can proceed to upgrade to Catalina. * If your Mac is running OS X Lion or Mountain Lion, you must upgrade to El Capitan before you can upgrade to Catalina. ![]() The following versions of OS X and macOS can be upgraded to macOS Catalina. If anything goes wrong, you can restore your Mac to its previous state. Back up your dataĪlthough not required, we strongly recommend you back up your Mac before proceeding with an upgrade. However, you can still try to upgrade to El Capitan. ![]() If your Mac is not on this list, you cannot upgrade to Catalina.
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