So my seagate 750gb hard drive was about to fail so I decided to completely wipe it out . I replaced it with my new toshiba q series 128GB SSD . I replaced the driver, turned it on, and I get an error message saying "no boot drive detected" there was nothing on the ssd so I was wondering if I could install windows 7 on the ssd but sadly that didn't work. i went into the bios and i can see that my toshiba ssd is being read, but still, no bootable disk. Any ideas ? i feel like i need an external CD drive to install windows 7 again.