Help!!!! It wont Let me play!!!!!!

I haven't played minecraft in a while and I really felt like playing after watching a video on youtube so I went into minecraft and saw there was an update "Cool !!" I clicked the Play Button But It Says " Error
Unable to save download. bg_bg.lang
Name: bg_bg.lang
URL: http://resources.download.minecraft.net/b5/b5e80f97f438a38a7adea418aec08a85834ca57a
Error details: Attempting to move successful download to C:/Users\Tamara Beakey\AppData\Roaming\.minecraft\assets\objects\b5/b5e80f97f438a38a7adea418aec08a85834ca57a
The process cannot access the file because it is being used by another process
Filename on disk: bcb7-b08b-1712-06d1
Path: C:\Users\TAMARA~1\AppData\Local\Temp\bcb7-b08b-1712-06d1
Exists: file "

Please Help !!!!!!!!!!!