Hi My old Laptop now has a new HDD with 100 GB of extra space. I would like to use 20 GB as an alternative System Drive. I always validate an image when created, so I can try again if it is not valid. Before I restore a previous image, I re-validate just to be sure. Then I worry because I have read that even a validated image may fail to boot. In which case I not only have an unbootable system that needs the Boot CD, but far worse - my working system C:\ drive is destroyed and it is lost for good, unless I first spend time, effort, and external drive backup space, creating and validating the latest System C:\ Now I have the space, I would like to restore to an alternative partition. It would be really nice if I could use Dual Booting, but I have heard this is something that needs to be organised before software is installed, in which case my problem is that I am using an image taken from an old HDD that had windows pre-installed, I have no installation Disc. Alternatively could I run a simple "toggle" script / batch file to automatically remove the C:\ from the original system partition, and allocate C:\ to the alternative partition. I assume that this might be possible in Safe mode, but probably needs to use an O.S. in a boot CD. Under normal conditions I then have the desired image working, and using the alternative partition, but if it fails I simply re-run the toggle script and the original partition is reactivated to restore bootability. An additional benefit is that I can create an image immediately before a tedious lengthy procedure to upgrade or replace a software suite or set of applications, and after that procedure I could restore the previous image to the alternative partition, and then the "toggle script" will conveniently toggle between the old system and the new system to facilitate rapid comparison between old and new features, after which I can decide whether to continue with the old or the new version. Please help me with any scraps of useful information. Do not hesitate just because you cannot offer a complete solution. I am aware of various sites I can fall back on for general advice upon dual booting etc., but this is the only place I know to give Acronis specific advice.