3 of 17Image
Now just start following the create a new virtual machine wizard.
Be sure to pick Windows/Windows 8 for your VM. If you're going to be testing out the 64-bit version, select Windows 8 (64bit).
VirtualBox may think that you'll only need 1GB for 32-bit Windows 8. Don't believe it. Set it up with at least 2GBs—that's 2,048MB.