Oh my.
Somehow, the Ubuntu iso I downloaded got trimmed in about half (I swear to God, when it first appeared in the download folder, it was 698 or so MB; but somehow it got trimmed to 386 MB) and then, I made a "pseudo-flash drive" (on my computer drive H; I did this because I couldn't obtain a CD or Flashdrive with enough space) by partitioning a new drive from some data I trimmed from C (it's now 95 GB; good enough for my needs) and formatting it under the FAT32 system. I used UNetbootin to extract the iso, and for some odd reason it didn't catch it... and I loaded it onto H.
Then I boot my computer and I realize that something was wrong, far too late.
The damn thing got stuck on startup, because the files were incomplete! It freaked me out! Luckily, I know how to change boot order, and I made it work again. Phew. At least I knew my Pseudo Flashdrive idea worked...
For those who are curious, I also partitioned another drive, R, that I was going to see if I could install Ubuntu to.