I'm trying to upgrade a Dell Inspiron 16 5620 (P117F).  Everything went smoothly until I tried to install the operating system.  The system doesn't 'see' the drive.  I have roughly 25 years in hardware experience and I think this is the second time this has happened.  Someone sent me a script to use at boot that allowed me to installed the operating system but I don't know if that is what is required this time.

Thanks