This computer came with Windows 10 installed and I have separately purchased Windows 7 directly from Dell. The Windows 7 software from Dell will not install on the Dell Inspiron 7559 complaining that at a DVD driver is missing.
I have followed a Microsoft suggestion to make a bootable USB from the DVD and install from that instead. Same problem. I still get blocked by the demand for a DVD driver.
After some investigation, I found a youtube video that suggests the problem is related to USB3. I don't know of any USB2 ports on the 7559 as they are all USB 3.0 from the specs.
How can I get this software to install? Several calls to Dell Support has not been able to help.(Please visit the site to view this video)