I wanted to have two completely seperate installs of XP and Vista so here is what I did: * Created two NTFS partitions and set partition #1 to active or "boot" * Installed XP to partition #1 * Set partition #2 to active or "boot" * Installed Vista to partition #2 Now, I did this so that each install was completely seperate from each other and Vista didn't store it's boot files on XP's partition, etc. However, can I have Vista boot XP even though it's on a different partition? I've configured bcdedit to use the partition and \ntldr but I think it says ntldr not found (during boot). I'm guessing this is because XP is expecting itself to be the active/boot partition but Vista is currently set. Do I need a 3rd party boot manager? It seems to be looking that way (which is fine).