I built my own gaming computer recently and had a pre-activated copy of windows 7 running which i upgraded to windows 10 from, I then bought a new ssd (Intel 120gb 535 series) and tried to use the intel data migration tool to swap over my boot drive to the new ssd, it kind of worked but the screen was flickering badly, wouldnt load anything and it was just shitty, so i formatted the SSD and am now trying to instal a fresh install of windows 7 on it from a usb drive ( i know the usb drive works because i have done it on other computers with no problem) but when I try install on the ssd it comes up with "A required CD/DVD drive device driver is missing. Please insert the installation media...etc..." i have been trying to fix it for the last week and have tried everything. please help