I have just installed a second Hard Drive. I made the oiriginal the Slave and the new one the Master. It installed OK and although it didn't come with any software I downloaded some from Western Digital which made the installation childs play. I now have identical software on both hard drives. What I wanted to do is keep a basic Windows System on the second drive in case of emergencies, but this would need some software that allowed me to boot from either drive, and someway of having a usual Windows layout on the second drive. Is such software available?