If you have ever run into a issue where the bios has to be updated and you can't get to the OS well his is the fix.
Download the Dell Service Utilites, extract and place in folder.
Next build a out a formatted floppy disk (yes a floppy disk) don't worry we will move that to a USB drive for more storage.
Next download SP27608-2.1.8.exe search google for this since its a HP tool.
Run the program and add the files needed to instructions for SP27608-2.1.8.exe.
After that add your files to the usb drive then use the boot menu. BAM!
Now you have some tools in the command prompt.