[FIX] If you're having periodic screen freezes, try this!

Hey guys! A while back I was suffering from extremely annoying screen freezes, specifically on starting teamfights and regardless of graphics settings. Because they were anywhere between 0.2-0.5 seconds long, it took me some time to figure out it was a performance, and not a lag issue. I couldn't find any way to fix it for some time since all my hardware was sufficient (oh how wrong I was) and support couldn't help me either. At the same time I was playing WoW and had been having serious issues with advanced combat logging, a feature that writes every single combat event to a text file. It was killing my fps to about 2 (from 40) in raids. I suspected the same happened in League, leading me to conclude it was a HDD issue after eliminating every other possibility. Upgrading to an SSD (a new HDD would have solved the problem too, I suppose) ultimately resolved my 2-month issue.

TLDR: my HDD was defective. This can happen to any HDD. If you're experiencing screen freeze issues, be sure to check your HDD healthiness with a third-party tool. It might very well be the solution if you're also suffering:

• Longer-than-reasonable load times when playing video from your HDD (very noticeable)
• Mystery performance issues regardless of graphics settings or thread priority
• Excessive performance loss with logging features (e.g. WoW advanced combat logging)

While it isn't Riot's responsibility to accomodate for hard drive issues, it might be a good idea to include this suggestion in some form or another in their standard troubleshooting list. Here's to hoping I help some people solve their issues :)