Just rewriting this post so it's more clear.
I'm unable to get back to Windows after I burned Ubuntu to my USB Drive after using a program called "Rufus".
Now, when I attempt to boot Windows, even after I took out my USB Drive, it will still boot to Ubuntu.
I'm not sure about what to do to get back to Windows, and I'm worried because I had important photos and videos there as well.
When I attempt to get back to it, it says "No partitions detected", so this may be the problem.
EDIT #2 : The problem may be that I didn't select the "Try Ubuntu without installing" option, but rather the second one (I forget the name...).