Factory Reset with downloaded restore image iso from Dell website

Hi,

I just purchased a new XPS 9350 computer and when I was trying to upgrade to Windows 10 Pro something went wrong. I ended up deleting all the partitions of my hard disk including all recovery etc. Now I downloaded the factory image from Dell website for my model and successfully installed. However I thought after installation that drivers would have been also installed. This was not the case. All drivers were missing including network driver.

Is this normal. How come all drivers were missing from that image file?

Thank you for your support.