I thought I'd share how I overcame this issue. I was using a year old Dell laptop and tried to use the RST drivers, but it kept saying it couldn't find them. When I went into the BIOS setup, I found Dell had configured RAID for the drives setup. I changed this to be AHCI and saved the configuration. It complained that I may not be able to boot, but I ignored that since I was going to be reloading Windows. After a restart and boot to the USB
Windows installer drive, the laptop drive was visible for installation.
Cheers!