TOSHIBA file gone from C: and Program Files

Hello,

I recently did a full factory reset on my Toshiba Satellite Radius P55W-B5112. Initially I thought everything was okay, then I noticed some keys on my keyboard weren't working as they say (example: my keyboard has the F2 and F3 keys as brighten the screen buttons and they only work as F2/F3 when I simultaneously press the FN button, and they were not brightening my screen when I would press them alone). So when I went to look this up to see how to fix it, I was sent to a YouTube video that said I had to go to the Toshiba System Settings thing from the Program Files and do stuff there to fix it.

When I went to do that the TOSHIBA folder was completely gone and essentially doesn't exist and I don't know how to fix it.

Any advice would be great!