Windows 10: Unable to acces second internal hard drive on Windows 10

My computer has a 1 TB second internal storage drive, and the 238 GB the main drive has been filled up with apps and games. I tried to go to storage settings and move my apps and games to the second drive, as well as redirect all future app downloads to the second drive, but it will not show up on either of the menus. I need help, as my main computer drive is full.

:)

 

Windows no longer recognizes second internal hard drive

Why is it both Windows 8.1 and Windows 10 no longer recognize a second internal hard drive?

Previously in both my Windows 8.1 and Windows 10 PC’s, I had an internal second drive connected in each PC and both worked quite well. In the case of the Windows 8.1 PC, I used to use the second internal drive to do system image backups and the second
internal hard drive in the Windows 10 PC as a File History drive.

But now, in both PC’s, the internal second drives are no longer being recognized. Both File History and System Image backup now only work when drives are connected externally.

If the second hard drives are connected internally, this error message comes up : "Operating system not found" on the Windows 8.1 PC and "no usable hard drives found" for File History on the Windows 10 PC.

Surely that should not be the case? What could be the cause?

***Post moved by the moderator to the appropriate forum category.***

 

windows 10 professional not finding one of two internal hard drives

On computers one can have multiple flash drives and multiple hard drives. Currently windows 10 is not finding the internal HD when I add it to one of the bays inside of the computer.

So far I have done the following:

1) restarted the computer clicking the F2 key then running HD quick test in the bios. There all flash drives and hard drives are displayed.

2) used administrative command prompt then entered diskpart then list disk. There it does not display one of the internal hard drives.

3) right clicked on the start then clicked disk management. There it does not display one of the hard drives.

4) moved the internal hard drive to another computer to another internal hard drive bay where steps 2 and 3 above display the hard drive.

How come the HD is discovered by the bios but not the windows 10 professional operating system?

How come the HD is discovered by the bios and windows 10 professional operating system in another computer?

What part of windows 10 pro needs to be worked up or fixed so that the internal hard drive is found by the windows 10 operating system on all computers? There were no integrity violations with sfc /scannow nor were there any problems found using dism /online
/cleanup-image /restorehealth.

 

Second hard drive disappeared

I upgraded to Windows 10 a few days ago and everything was going fine. Today I was moving files from my second hard drive (internal drive) when the folder I had open closed. I tried to reopen it but the drive was gone. I checked to see if the drive letter
was dropped but the drive it self was not listed. I have the latest drivers and bios. Any idea what happened and how to fix it?