What happens to the .box file after the following command is executed?
vagrant box add lucid32 http://files.vagrantup.com/lucid32.box
I can
On Windows 10 with Vagrant 2.2.2, setting the environment variable VAGRANT_HOME will ensure that boxes are downloaded to a subfolder of the folder specified for VAGRANT_HOME.
In my case I set VAGRANT_HOME to e:\vagrant_home, and the boxes get stored under e:\vagrant_home\boxes.
This works for me.
That's where the boxes are stored. The virtual machines are being created in the folder configured in Virtual Box. To set the VirtualBox VM storage folder, go to: VirtualBox GUI --> File --> Preferences --> General --> Default Machine Folder.