OK, this worked! Now booting into AHCI, and the Samsung driver loaded. No improvement in speed, though! Still 1,777 read and 1,527 write. Not sure if the M.2 slot is dedicated or not. I think...

Yes. Device Manager Storage Controllers shows an "Intel Chipset SATA RAID Controller" (and a Microsoft Storage Spaces Controller). I'll try changing to the AHCI using msconfig. Didn't work when I...

You are correct. The Dell Latitude E7470 is set to RAID. However, my new M.2 PCIe drive works. I did install Windows 10---just have not been able to do a data migration or use Reflect to clone my...

Both flash drives I used were formatted as FAT32. I checked in Disk Management and it shows the only partition as being "Healthy (Active, Primary Partition)" so I don't think this is the problem.

Unfortunately, this was not successful, either!

Made a supposedly bootable USB flash drive from the link, but the laptop "could not find a bootable device" despite several attempts (tried both the...

I had to change to Legacy to be able to try to boot off the USB. Otherwise I could only boot off the hard drive (the new one, which was empty).

Yeh, I'll try making a bootable flash drive...

Aha. I actually tried that first, but...it seems that the Startech USB enclosure supports SATA M.2 SSDs, but not the PCIe M.2 drive. After installing the new Samsung in the USB enclosure neither my...

OK, now I know maybe why it's not booting. But..is there a fix? Can I reinstall the old hard drive in the laptop and reset it to Legacy booting? There must be a way I can transfer Windows 10,...

Trying to install a new Samsung 960 EVO M.2 1 Tb hard drive on my Dell Latitude E7470 laptop with Windows 10, but my Dell won't recognize the old drive in an external USB 3.0 case. I intended to...