How to install blackarch linux on virtualbox

[pure]

We use VirtualBox graphical user interface version 5.0.0 r101573.
Start the virtual machine, when the input of a character, you will not be able to enter the "@".
Please tell me how the input of @.
Thank you.

Supplement
@, It is intended to be used in the e-mail address in single-byte.

[dlharper]

This sounds like a keyboard nationality issue in the guest.

Are you sure your guest OS is set up correctly for your keyboard layout?

[pure]

Hello.
That we received pointed out that helpful to you, it has been improved is the problem.
Thank you.

[pure]

Hello.
Virtualbox I am using a graphical user interface version 5.0.0.
I have downloaded the blackarchlinux-live-2015.04.08-x86_64.iso file.
The BlackArch Linux on how to install the Virtualbox, thank you for your teachings.
Because it is a beginner, you will be saved and you are able to the as much as possible in detail your teachings.
Thank you.