Unable to create directory netty-1.6.jar

Unable to create directory. netty-1.6.jar
Name: netty-1.6.jar
URL: https://libraries.minecraft.net/com/mojang/netty/1.6/netty-1.6.jar
Error details: The file or directory is corrupted and unreadable
Filename on disk: f03d-196d-5c00-db03
Path: C:\Users\Batman\AppData\Local\Temp\f03d-196d-5c00-db03
Exists: file