Are you sure you have your Rufus and ISO set up to install win 7 UEFI? your system was shipped set up UEFI
Too reach a boot menu on boot up hit the ESC key that will bring up a boot menu from there select your UEFI DVD or UEFI USB.
Are you sure that your hard drive as not also gone defective?
Check out this
thread if your sure your hard drive is not defective. This thread covers just about any type install you want to try. Your DVD player can easily be
replaced
G752VY-DH72 Win 10 Pro
512 GB M.2 Samsung 960 Pro
1 TB Samsung 850 pro 2.5 format
980m GTX 4 GB
32GB DDR 4 Standard RAM
Z97 PRO WiFi I7 4790K
Windows 10 Pro
Z97 -A
Windows 10 Pro