No "Use a Device" option in Advanced Startup.

Last night I updated my computer to Windows 10.
I noticed after doing so my Gaming Rig (which has been out of commission since 2014) had a 32bit operating system despite having the capacity to run a 64bit.

I read online that I'd be able to create a boot disc or usb device using the Media creation tool and install that following a few easy steps, however, going into the advanced start up options, it looked a bit different than what I was led to believe.

(Expected)


(What I see)


(Note: This was just a reference image I found, I am running Windows 10, not 8.1).

My Disc Reader is working fine, so I'm unsure what I'm missing. I've had no luck searching for any answers so I thought I'd ask for my sanity's sake.

I've tried both a USB & and a DVD, both were able to hold the boot data created from the Media Creator, however I can't seem to get it to take.

I've attempted to open up the boot menu while loading, however when I selected to boot from BIOS using USB (HDD, ZIP, or otherwise), nothing would take. When I attempted to boot through CD/DVD, it only loaded windows 10 as normal, however my Desktop was broken (ie no icons outside of recycle bin), I couldn't access the start menu and Cortana has forgotten the hour or two we spent together asking me to initialize the function once more..

It wasn't a fresh install, however, and it certainly wasn't the 64 bit system.
Now, I'm at a loss.