I was casually going through my PC, and realized that my storage was nearly full. I was very surprised, because I hadn't downloaded anything huge recently.

Then I found the culprit, located here: C:\Users\username\AppData\Local\Temp

This file was huge for me, near 70 GB!

After every game of league since last patch, I get a "ding" sound on my computer. Apparently it's crashing every time or something similar, and dumping files there? Either way, check our your folders to see if they're also massive lol