try creating your disk without removing anything. Then testing. You can get VMWare Server of Virtual PC for free from VMWare and Microsoft. They are installed on a running os and then you attach your ISO to the cd of the virtual machine and perform an install to the virtual machine. So you basically have an OS running from within an os. Saves on CD-r's and having to have two machines to do your testing on. It won't wok for testing hardware drivers but it will for the rest of an installation.