a file cannot downloaded to my computer because its already there and cant run minecraft.. other bugs reported like this did not work for me since I do not have Byte Fence

Unable to create directory. thunder2.ogg
Name: thunder2.ogg
URL: http://resources.download.minecraft.net/a2/a20cbf2ddce541eaed520d7ec55665fe97428be6
Error details: Cannot create a file when that file already exists
Filename on disk: 682b-92d4-5092-a758
Path: C:\Users\Musical\AppData\Local\Temp\682b-92d4-5092-a758
Exists: file