Help I downloaded the Kali Linux 2.0 iso and it wont mount!

Failed to open the disk image file C:\Documents and Settings\Admin\My Documents\Downloads\kali-linux-2016.1-i386.iso.

Could not get the storage format of the medium 'C:\Documents and Settings\Admin\My Documents\Downloads\kali-linux-2016.1-i386.iso' (VERR_NOT_SUPPORTED).

Result Code: VBOX_E_IPRT_ERROR (0x80BB0005)
Component: MediumWrap
Interface: IMedium {4afe423b-43e0-e9d0-82e8-ceb307940dda}
Callee: IVirtualBox {0169423f-46b4-cde9-91af-1e9d5b6cd945}
Callee RC: VBOX_E_OBJECT_NOT_FOUND (0x80BB0001)

:(

Have you verified the SHA1sum of the file you downloaded?

I downloaded it straight from the site.

I redownloaded the file and it works. Thanks alot!