Hello, My apologies if this has been covered elsewhere in the forums - I have spent a while looking and have found threads with similar issues, but none identical. I have a desktop system with a single 750GB hard drive running Vista 64bit. I did not receive a Vista CD/DVD with the system, and there is a 14 GB partition which I believe contains the restoration data. The remaining space on the hard drive is a single partition housing the OS and all data files. What I want to achieve, is to add a second drive to create a RAID 1 array (i.e. mirroring) with Vista booting from that array, with all programs and data also being stored there. My hardware supports RAID, and the process for seting it up appears to be straightforward except that in doing so my original hard disk will be wiped and will require everything putting back on it when it is part of the array. My idea is: 1. To use True Image to create an image of the original data to an external USB hard drive. 2. Then to install the second hard drive and create the RAID 1 array. I can do this during the computer bootup, before Windows starts loading. 3. Then to restore the image I created to this array. I realise a clean install would be preferable, but in creating the array I will effectively be wiping the recovery partition on the hard drive, and have no access to a Vista installation disk. I also want to avoid having to install software, updates and configure preferences etc. Does anyone have any experience of this, or can anyone offer guidance as to whether this is achievable and the steps I would need to follow?