game launch error Unable to create directory. equip_iron1.ogg

Name: equip_iron1.ogg
URL: http://resources.download.minecraft.net/fc/fcb8cef95d170fa97e14a35c625976511d53b1fd
Error details: The file or directory is corrupted and unreadable
Filename on disk: 6a3c-ae7f-642f-d3cc
Path: C:\Users\Roberta\AppData\Local\Temp\6a3c-ae7f-642f-d3cc
Exists: file