Hey guys I have a question and this Forum was i think the closest one. Okay so here it goes... When you have a Windows CD, you can boot from CD-ROM, or you can explore it from within Windows. When you have a dual/multi-boot CD, you can do the same... Now when you have a HDD, the MBR (Master Boot Record) allows the HDD to load the OS, but if you were to take it out and add that HDD as a SLAVE on another computer, you could explore it, and add/remove files. IS it possible to take an EXTERNAL HDD, and mess with the MBR or whatever you would need to, so that you could "Boot from USB HDD" (like most new BIOS' will allow), and from there either install Windows, OR direct it accordingly to "Multi-boot"? And of course still use it as an external HDD. P.S. I wouldn't want the "Boot Images" to be static, so i could take my "Unattended XP Install", update my programs with the newest versions on the fly .