Did you check the md5sum?
I tested in on virtual machine a few times and it was working fine.
I try to find big flash usb to double check.
If you still have a problem with the installer, use older installer by the command:
sudo sparkylinux-installer guiIt works fine on BIOS machines.
It uses gksu, so it works after installation.
If you'd like to try it in live mode, set the root password as the first: