Boot problems with HP dv7 Windows 10 laptop

Hope I am in the right forum. My problem is as follows: My wife and I have same HP laptops. Her motherboard died. I have two hard drives in my computer. C drive had system on it and D drive had mostly mp3's. I took out the D drive and inserted my wife's HD thinking I might be able to extract her files. It did boot and I did extract all her files successfully however when I reinstalled my HD (drive D) the computer would not boot. What I need done is to get the system and system boot on my C drive so I can return my original HD (D). I have inserted a screenshot of what all of this looks like. Can anybody help me straighten this out. At 77, I'm not very good at this as you can see the mess I'm in.
Thanks

Thanks for your reply. No, it won't boot with just the C drive installed. The F drive as shown in screenshot is my wife's drive. I don't have any other boot devices to use. I'm not sure where my system is stored, it looks like it is on the C drive but it won't boot

In the image there are rows and columns.
The information in each column and row can be in full view or be hidden.
In the image the status column was too narrow and the information in the rows was cut off.
1) Please post a new image into the thread following the instructions in this link:
Disk Management - How to Post a Screenshot of | Windows 10 Tutorials

2) Find several flash drives that you can format ( > or = 8 GB)
3) Make a bootable Windows 10 iso:
Download Windows 10
4) Make an iso for Memtest86+ version 5.01
Memtest86+ - Advanced Memory Diagnostic Tool
5) Test the HP hardware using HP UEFI diagnostics.
6) Power on the computer and repetitively click the F2 key.
7) Indicate into the thread which tests are available or whether you can view the HP UEFI diagnostic version.
8) There is a default version that comes with the computer and there is a downloadable version.
The downloadable version performs many more diagnostic tests.
There is a USB bootable test that is in the middle with features.
9) Report into the thread what you see when you open the BIOS with the F2 key.
10) If it is the default version and not the download version > create a HP bootable UEFI hardware diagnostic flash drive:
HP PC Hardware Diagnostics | HP® Official Site
11) Report the result into the thread.

New screenshot below. Disk 0 is my original Hard Drive. Disk 1 is my wife's drive. My second Hard Drive was labeled as Disk D and had mostly mp3's and itunes. Again, when my original drive (Disk 0) on screenshot and my original drive Disk D and installed (original installation) computer will not boot. I tried doing bios default and change boot order but the only option available was internal hard drive. No was to select disk 0. However, if I install my wife's HD, computer boots just fine. I need to change the boot order somehow so it boots my disk (0). The correct label for my drives should be Disk 1 (boot disk and C:) and Disk 2 D:
Hope this makes since.

The HP computers that I use have 2 HD bays. They also have SSD.
Moving a drive from one computer to the other works for storage drives.
It fails for the Windows drive.
The MB is married to the HD.
So I am surprised that you were able to get your wife's HD to work in another computer.
If I move my HP drive to a different model HP computer it could be a RAW drive.
The licensing method that Microsoft uses allows you to clean install and reinstall the operating system with a digital license.
However what you are doing by moving the HD to another computer that is the same model is similar to switching MB.
So again I am puzzled how it worked with your wife's drive and no longer works with your drive.

https://support.microsoft.com/en-us/...ardware-change