virtualbox.org

Hello
Im New To Virtual Box
I Clicked On New
And Was Creating Virtual Hard Disk
But I Canceled It
But Even Then It Created A File Inside My Documents, Its Not Showing Anything In The Virtual Box But That File Is Taking 20GB Of My C: Drive, When I Try To Delete That I Cant. It Says File Is Open In Virtual Box
Please Help
What To Do ??

Delete the guest in the VirtualBox main manager and when asked to delete the file say yes.