I did something similar in 7th grade, with the extra naughtiness of charging my peers 50 cents or so to drop the basic Windows games like pinball and Ski Free into their home drive. I created a couple of joke files in my favorite teachers' directories and then notified the IT admin before someone more nefarious saw what I was doing.
That admin became my mentor and is now a lifelong friend.
The IT admin at my high school was a prick and from what I’m told took it very personally when my friend was caught mapping network drives.
The closest thing we had to a computer class was graphic design where you played with Photoshop and Premier for a year. God forbid we learned to write code or whatever.