How-To Fix Dell XPS 10 Tablet's DEAD-BOOT Issue!

Recently, I had a major issue where I thought I almost lost my new XPS 10 tablet, due to trying to upgrade to the new Windows 8.1 preview. Essentially, I did the upgrade, restarted the tablet and ran into an issue with booting back into the tablet. Everything I tried, including using the Windows 8 recovery disc did not work. Until I did this...