Just installed....keeps saying all the different items are already being used in another process

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Name: idle2.ogg
URL: http://resources.download.minecraft.net/9c/9c7aaf49b3096a69a2d6ca62c1067400a2b70814
Error details: Attempting to move successful download to C:/Users\cahla\AppData\Roaming\.minecraft\assets\objects\9c/9c7aaf49b3096a69a2d6ca62c1067400a2b70814 The process cannot access the file because it is being used by another process
Filename on disk: 5c07-197e-57da-1869
Path: C:\Users\cahla\AppData\Local\Temp\5c07-197e-57da-1869
Exists: file
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Duplicate of MCL-5546