Error, rather than a bug

Okay so short version had issues unrelated to league courtesy of Microsoft's finest... but had to do a reset to be able to use my laptop again. Background info aside, this is more just feedback for Riot to help efficiency in similar future scenarios. Directly after posting this I will be re-installing league. Apparentlyc during my laptops reset I lost one single very specific dll file pertaining to league. The client worked fine and I was unaware, sat through a champion select, and just as the client switches over and the game is supposed to load in, I got this following error message. [IMG]https://image.ibb.co/n1G3Uv/error_league.png [/IMG]

Anyways, I thought there may be a way to get the file back without having to reinstall league as a whole. Unfortunately, this wasn't the case. I tried a client feature under settings to "initiate full repair" in which the client checked for corrupted files however I did not resolve the issue or seem to detect it. I include this info just in case this feature is supposed to catch something like this because in this specific circumstance it didn't.