Every time I try to launch Minecraft, I get a pop up saying that it was unable to save the download, followed by this:

Unable to save download.
Name: swg.json
URL: https://resources.download.minecraft.net/6c/6cd6be811ca8c3a482f3287dead1ef283435712c
Error details: The process cannot access the file because it is being used by another process.

Attempting to move successful download.
Filename on disk: d402-8050-3823-fc45
Path: 
Exists: File

I have already checked for, and uninstalled any incompatible programs, and reinstalled the launcher several times