"Non-system disk Press any key to reboot"- Trying to install Win 7 on Mac Mini
Hello. I'm trying to install Windows 7 on a new-model Mac Mini ('Late 2012'), which I just bought from Apple. [Specs: 1 TB Fusion drive, 2.6 GHz intel Core i7, 16 GB RAM, OS X Mavericks (latest), Graphics: Intel HD graphics 4000, Screen: LG Flatron 24"].
After following instructions on Bootcamp, I tried installing it through my external USB Apple Superdrive (DVD), but for some reason as soon as the system finishes getting things ready and reboots to begin installing Windows 7, I get a black screen with an error message as follows: "No bootable device -- insert boot disk and press any key". Pressing the keys on my keyboard does nothing (even though it's a wired model, not a wireless one.) I'm forced to do a hard shutdown using the power button and hold down the Option key in order to get the system to show the Mac HD where OS X is. It also shows the Windows DVD as another option, but when I select it and the system boots, I just get the same error message again. So I go back to a hard shutdown and reboot to go into OS X again.
Not sure what to do, I did some online research and in one post in the Frequently Asked Questions for Bootcamp, it says for installing Win 7 and Win 8, the computer won't work with external USB drives (*totally nuts in my opinion - Apple has to fix this stuff if they want to entice Windows users into buying their sleek, quiet hardware). Instead, the post recommends creating a Windows 7 ISO file from my Windows 7 DVD and putting it on a USB thumbdrive that Bootcamp is going to use to put all the Apple/Windows drivers on for the installation process. I'm also told I have to unplug my Superdrive (no explanation given for why). So I do all this and get Bootcamp Assistant running again. Unfortunately, as soon as the system reboots after going through all the usual preparation steps, I get another black screen with a new error message: "Non-system disk Press any key to reboot". So I'm at a loss for what to do next.
(I've also have an iMac that I bought more than a year ago that I also put Windows 7 on, with no problems that time. Go figure.)
If anyone here has an good answer for how to proceed, I need to know. Thanks in advance!
Mac mini (Late 2012), OS X Mavericks (10.9.4)
