Vagrant: The box you're attempting to add doesn't support the provider you requested

>PROBLEM

Starting Vagrant using VirtualBox as follows:

   vagrant up

Fails to start returning this message:

The box you're attempting to add doesn't support the provider you requested. 
Please find an alternate box or use an alternate provider. 
Double-check your requested provider to verify you didn't simply misspell it.

If you're adding a box from HashiCorp's Vagrant Cloud, make sure the box is
released.

Name: ubuntu/trusty64
Address: https://vagrantcloud.com/ubuntu/trusty64
Requested provider: [:hyperv]


If you force, using:

  vagrant up --provider virtualbox

vagrant then returns the following:

Vagrant has detected that you have a version of VirtualBox installed
that is not supported by this version of Vagrant. Please install one of
the supported versions listed below to use Vagrant:
4.0, 4.1, 4.2, 4.3, 5.0, 5.1, 5.2, 6.0

The provider 'virtualbox' that was requested to back the machine
'mongod-m103' is reporting that it isn't usable on this system. The
reason is shown below:

Vagrant has detected that you have a version of VirtualBox installed
that is not supported by this version of Vagrant. Please install one of
the supported versions listed below to use Vagrant:

4.0, 4.1, 4.2, 4.3, 5.0, 5.1, 5.2, 6.0

          A Vagrant update may also be available that adds support for the version
        you specified. Please check www.vagrantup.com/downloads.html to download
        the latest version.


>SOLUTION

Download a version of VirtualBox compatible with Vagrant's version.
For instance, if vagrant v2.2.6, use vitualbox 6.0.

Download here (change the url's version suffix for the one desired):

https://www.virtualbox.org/wiki/Download_Old_Builds_6_0


>ENV

Windows 10
Vagrant v2.2.6
VirtualBox 6.0

>SEE

Vagrant: There was an error while executing VBoxManage, a CLI used by Vagrant for controlling VirtualBox

Docker: Hardware assisted virtualization and data execution protection must be enable in the BIOS