I upgraded from Windows 8.1 to Windows 10. The upgrade was very smooth except that W10 does not recognize my 2nd hard drive (no issues with W8.1). The drive is recognized in BIOS but does not show at all in W10 Disk Management. I've read other discussions that the drive may show in DM and the fix is to simply change the drive letter, but DM only shows my primary drive as Disk 0 then my USB drives. No 2nd hard drive.
I've also started in Safe Mode but have the same issue, no 2nd hard drive.
Is there a fix available? Or perhaps is it possible a service is not running which needs to be turned on?
Any help is appreciated as I need to be able to access the data and documents on the 2nd drive.