I've 15 inch Macbook Pro non-retina. I've removed the DVD drive and install SSD instead, when I try to install Windows on bootcamp drive from USB drive, the USB drive doesn't boot.
I remove the SSD and put back the DVD, it works, and installed the windows.
Now I want to change this Windows 7 to Windows 8, unfortunately I no longer have the DVD drive, what can I do ?
I'm running OSX yosemite