"My Dell laptop keeps restarting itself, then gets to the windows black screen, and then does it all over again. I want some opinions on whether there is any way of fixing this without wiping out the hard drive (hoping that it isn't already wiped)?"
Laptop/computer with Windows 10/8.1/8/7/XP always restarts automatically is a common problem for users. They suddenly get restart again and again without warning, or keep restarting every few seconds when you try to shut it down. This could be caused by a variety of reasons, and the reasons can be sorted into 3 categories:
Usually you can access your computer in safe mode and use the options offered by Microsoft to repair the laptop/computer that keeps restarting. If that doesn't work, try to use Windows Boot Genius, which can fix the "laptop keeps rebooting or restarting" problem without any data loss.This tool creates a bootable disk or drive that helps to boot up your PC which can't boot up. It works for all computers, and no matter your computer (or laptop) is from Sony, Lenovo, Dell, Acer, Asus, LG, Toshiba or other computer manufactures, you can let Windows Boot Genius to fix your Windows boot problem.
Windows Boot Genius has a list of utilities for you to use in order to fix the "cpmputer/laptop keeps on restarting" problem. You can try them one by one until your problem is solved and your computer is back to normal.