I couldn't get out of the (Blue Screen Of Death) BSOD screen (i had not desk top tray or anything else:
"Your PC ran into a problem and needs to restart.
We're just collecting some error info, and then we'll restart for you."
". . . . . . . . . NTFS File System" error windows 8 HP ENVY dv7 Notebook PC 17"
This page helped:
Testing a Hard Disk from the BIOS
Perform a Hard Drive Self Test from the BIOS
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00439024&lc=en&cc=us&dlc=en
Perform a Hard Drive Self Test from the BIOS
Many computer problems are related to soft failures on the hard drive. The comprehensive portion of the HP Hard Drive Self Test
repairs soft errors on the hard drive, but does not report the errors. After the test completes, be sure to restart the computer to determine if the test repaired any problems you are experiencing with your computer.
1.
Plug the AC Adapter into the computer if it is not already connected.
2.
Turn off the computer and wait 5 seconds.
3.
Press the Power button to start the computer and repeatedly press the F10 key
to enter the BIOS Setup menu.
4.
Use the Right Arrow or Left
Arrow keys to navigate through the menu selection to find the Primary Hard Drive Self Testoption. Depending
on your BIOS, this may be found below Diagnostics or Tools .
5.
Select Primary Hard Drive Self Test ,
and then press the Enter key to start the test.
Figure 1: Example of a Primary Hard Disk Self Test screen

I got to the screen doing the F 10 key, but couldn't figure out how to get to the Primary Hard Drive Self Testoption
I tried Again, and Again, trying to figure out how to run thing thing.
Then i made a Mistake and pressed the F 11 Key [System Recovery] (after shutting the computer down, again,
and waiting the 5 sec.) Then (selected my language),
then Chose option (troubleshoot), then (Advanced options), then (Automatic Repair {Fix problems that keep Windows from loading}).
Why i made the choices i did, i couldn't tell you {except that something from all the stuff i've been reading trying to get out of this mess somehow stuck).
In (Advanced options) i had these choices:
- System Restore - {Use a restore point recorded on your PC to restore Windows}
- System Image Recovery - {Recover Windows using a specific system image file}
- Automatic Repair {the choice i made} - {Fix problems that keep Windows from loading}
- Command Prompt [which i had been trying to get to] - {Use the Command Prompt for advanced troubleshooting}
- URFI Firmware Settings - {Change settings in your PC's UEFI firmware}
I hope this helps someone, somehow. Good luck, everyone.