Unable to install Windows 10 and Intel rapid storage driver

Hello,

I'm still unable to install windows 10 on a dell latitude 7400 I built a USB boot disk and have drivers on a second USB. I boot up, start the installation and I get to the installation part, but I get a prompt for drivers. I select the drivers usb, I navigate who the f6flpy-x64 directory and and it shows the SATA driver, I click next, and it cycles through several green bars (they never seem to reach the end of the bar though before restarting) , and then basically prompts:

No new device drivers were found. Make sure the installation media contains the correct drivers and the click ok.

I downloaded the drivers directly from the dell site, so they're correct.

There doesn't even seem to be anyway to even contact a genuine MS employee these days, unless someone has a different number. They all point to their help.support.com nite which is totally useless.