Hi to all, I buy a new SSD for my mac. In my previous drive (250 GB ) I had installed Mavericks OS X and Windows 7 64 bits, everything cool until here. I install Mavericks OS X in my new Drive, the OS X found the previous Windows 7 and still I'm able to boot (in the old drive), then I installed windows 8.1 in the new SSD (with the OS X), but I was getting to many errors and blue screen so I decide to install windows 7 in the SSD disk, but now when I create the USB install (with windows 7) I can't boot from USB, I try some suggestion but still I'm unable to install W7 in the new SSD disk. What can I do to install W7? still I can delete all content from SSD disk but now from the old disk. Thanks in advance, Regards.