Vagrant remove one of many boxes with different versions

I am trying to run vagrant 1.7.4 on a windows 7 machine. I have vagrant installed along with a few boxes. I am trying to delete all of my boxes and start fresh. Below is a list of my boxes:

vagrant box list

laravel/homestead (virtualbox, 0.4.2)

ubuntu/trusty64 (virtualbox, 20151208.1.0)

ubuntu/trusty64 (virtualbox, 20151217.0.0)

This is what I have tried so far:

vagrant box remove ubuntu/trusty64

You requested to remove the box 'ubuntu/trusty64' with provider 'virtualbox'. This box has multiple versions. You must explicitly specify which version you want to remove with the --box-version flag. The available versions for this box are:

• 20151208.1.0
• 20151217.0.0

box remove --box-version ubuntu/trusty64 20151208.1.0

'box' is not recognized as an inteal or exteal command, operable program or batch file.

vagrant box remove --box ubuntu/trusty64 -version 20151208.1.0

vagrant: no version found in package ersion

How do I remove this vagrant box with multiple versions?

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