Alright, so I'm trying to load Minecraft. When I click play, it begins installing files, since I have reinstalled the launcher. But when it gets to this file, it gives this report.
Unable to save download. jna-4.4.0.jar
Error details: Attempting to move successful download to C:\Users\Smash\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\4.4.0\jna-4.4.0.jar
Cannot create a file when that file already exists.
Filename on disk: f126-9924-e6be-9690