I used the USB flash drive with the downloaded Dell restore. During the process when I was asked where I wanted to install Windows I saw all the partitions for all the drives and deleted all of them until they were just two drives showing. Windows installed fine but HDD was no longer listed in the my PC folder. The Intel rapid storage program no longer sees optane memory modules and the games I play have terrible lag. I've updated all the drivers that I can possibly find. I can't figure this one out.