My minecraft will not startup

Error details: Attempting to move successful download to C:/Users\Hazard\AppData\Roaming\.minecraft\libraries\net/minecraftforge/MercuriusUpdater/1.10.2/MercuriusUpdater-1.10.2.jar The process cannot access the file because it is being used by another process
Filename on disk: 9871-2cde-b54d-add5