<human>: So, we have a computer that I am quite frankly surprised hasn't just up and died like a dusty old cat yet. This thing has been at it since I was 12. I played Runescape on this thing in 2007. Now, the only people who ever used this computer were myself until I got my own, my mother, aunt and my grandfather.

So, on to the TIFU. I am home for break, and my mother asked me to clean it up so it would run better. She refuses to buy a new one, so I just go to work. Delete a bunch of crap, install new antivirus, the works. 

Then I get to the downloads folder.

Years of undeleted office documents, PDF's and email attachments. I didn't want to sort through it and I wanted to nuke the whole folder, but I got a reminder/alert message, telling me there were hidden files and/or folders in the downloads folder.

Easy stuff. I paid no mind to it. I just go to folder options, show hidden files and folders and-

It was at that moment that I was faced with the obtuse reality of what kind of pornography my grandfather was into. He had figured out how to download and hide dirty picture files, which was incredible considering he can't figure out how to use SIRI on his iPhone. I looked at the download dates on these files, and they went WAY back. Apparently gramps was surfing the naughty part of the web when I finished farming exp behind Draynor castle.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Its kind of like finding grandpa's nudie mags during Spring cleaning, but with hidden files on the family computer.