I have been trying to decide whether to buy this software and I need help deterniming if it is a good choice for what I want to accomplish. I will be using it on two computers. One is described as follows: Microsoft Vista Ultimate SP1 (32bit). Intel Core 2 Quad Q6700, 2.66 GHz, 8 MB cache, 1066 MHz, Gigabyte MB GA-X48-DS4, Mushkin 4 GB (2X2 GB) 240 Pin DDR2 SDRAM, DDR2800 (PC2 6400) Dual Channel Kit 996580, Video GeFORCE 8800GS. There are three WD 500 GB, Model No. AAKS-OOC8O hard drives. All of the hard drives are formatted NTFS. Office 2007 Student and Home, and eSET Security System. Disk 0, SATA 465.8 GB (formatted) Serial No. WCAS87231950, has two partitions C:\ and D:\ . C:\ Capicity 122.1 GB, Used space 48.0 GB. D:\ Capacity 343.7 GB, Used space 175.1 MB. MB is not a misprint. Dick 1, SATA, 465.8 GB (formatted) Serial No. WCAS 87231802, has two partitions E:\ and F:\. E:\ Capacity 122.1 GB, Used space 0, F:\ Capacity 343.7 GB, Used space 0. Both of these Disks are mounted internally in the computer case. Disk 2, SATA 465.8 GB (foratted) Serial No. WCAS 87182811, has two partitions G:\ and H:\ G:\ Capacity 122.1 GB, Used space 0, H:\ Capacity 343.7 GB, Used space 0. This disk is mounted in an external enclosure and connects to the computer using an eSATA cable. It is only connected when it is needed. It is stored away from the computer and would not be a candidate for any kind of scheduling. The other computer is similar to this one, except it uses Windows XP SP3. It is an older machine with a system that is older technology. I would be purchasing 2 copies of Acronis TI Home 2009. Starting here I will be using the word copy for what I want to do, whether it is called image, backup, clone, etc. If you make a suggestion I would appreciate you using the names used in the Acronis TI Home 2009 User's Manual. What I want to do is make a copy of Disk 0 and be able to transfer this copy to either of the other two Disks. When I look at the other Disks, 1 or 2,after making a copy, I want to see everything that was in the C:\ partition in the E:\ or G:\ partitions, and everything in the D:\ partition would be in the F:\ or H:\ partitions. In other words, I want to place an identical copy of Disk 0 on either of the other two Disks. The reason for this is that if I have a hard drive failure or any other type of problem, I want to be able to place one of the other drives in the place of Disk 0 and be right back in business. I do not want to do a recovery, repair or any other attempt to revive Disk 0. I don't want to fool with BartPE or Vista BCD. I know that the other two disks will only be usable to the date they were created, and I may have a loss of some data between the time Disk 0 had it's problem and the time the copy was made. My plans are that every two weeks Disk 1 or Disk 2 would be updated (a new copy would be made, and the old copy over written). In other words, Disk 1 would receive a copy of Disk 0 and two weeks later Disk 2 would receive a copy of Disk 0, and then I would alternate between making new copies of Disk 0 on the other two disks. If I was going to add a new application or anything else that was a major change in the system, then I would create new copies of Disk 0 on both of the other Disks, before the changes were made. The reason I want two Disks with the copy of Disk 0 is so that if something happens while making these copies, to either the copied Disk or the destination Disk, or both, then I still have a copy that will get me back in business. Now I would appreciate your thoughts on this. Is it totally out of the question? If it appears that it could be accomplished, what should I use? Create an image using the sector-by-sector approach, create a Fll Backup, Use the Acronis One-Click Protection, or create a Clone or what? In another thread http:/www.wilderssecurity.com/showthread.php>t=238004 Dwalby (post #15) stated "I only do manual full backups". Is this something I could use and accomplish what I want to do? If you have other altsernatives that you think would be better, or any suggestions or viewpoints I would appreciate your response. Other things that I need help understanding is, since the other alternative disks have different serial numbers will this create a problem if Disk 0 is replaced with one of the other Disks? If I do the above scenario, or something similar, will I have to rename the partitions on the replacement Disk to C:\ and D:\? Would I have to rename the replacement Disk as Disk 0? Any other GOT"CHA things I need to know?