Hello, i did not practice writing in english very often so there might be a lot of mistakes. Sorry for that. True Image 9.0 and Disk Director Suite 10 ist the software wich i use. I use True Image for installation (by imaging) and for Backup and it will worked fine. Then i have to make some changes on my PC and i decided to use Disk Director Suite. The "starting" configuration looked like that: 1. HD - 160GB PATA Samsung Spinpoint with two primary partions on it. The first one is the existing WinXP installation (30GB) and the rest is for data. 2. HD - 160GB PATA Samsung Spinpoint with one primary partition. This is the backup HD. The installation of WinXP is very old, SP1 with a lot of programms, especially musican programms. I dont want to touch it (never change a running system) because i need an up and running pc espeecialyy for mail and bankig. I decide build in another HD, swap some partitions, and make a new installtion for "Office" and another one for "Music", parallel to the existing one. After everthing works fine, i will kill the exsting (old) one and use the partition for testing. In this way i will always have an up and running system and in dont have to hurry up with installation. So the actual configuration looks like that: 1. HD - 160GB PATA Samsung Spinpoint with three equal sized partions (all primary) on it. - The first one (original drive letter C is the existing WinXP installation and will be the test partion in the future - The second one (original drive letter G, so called "Office", with WinXP/Programms installation for my office enviroment - The third one (original drive letter H, so called "Music", with WinXP/Programms for my music enviroment. 2. HD - 160GB PATA Samsung Spinpoint with one primary partition (original drive letter D. This is the data HD. 3. HD - 300GB PATA Samsung Spinpoint with one primary partition (original drive letter E. This is the backup HD. I do all the rezizing and swapping of partions with Disk Director Suite and it all worked fine. Then i've installed OS Selector. This also works fine. I've installed a new WinXP (SP2) in the second partion exactly as you describe it. This also works fine. So my intention is to take this clean WinXP installation, with all drivers for the hardware installed, activate it and then make an image. After that i can copy the image to the third partion and in the future to the testpartition, as often as i like it. And that is the point wehre the trouble starts!!! I try to do the install the image (from the clean WinXP installation of the second partition "Office") to the third partion and to make it work well but it will not work. All the time after i select the third partition "Music" in the OS Selector and boot it up, it seems to work well. It will show as the active system partition. But the drive letter will remains unaffected as H: and will not change to C:. The second partition "Office", wich the image is from, will stay with drive letter C:. WinXP will not work correctly (of cause). I've tried everything, read all the FAQ's, read all the entrys in this forum, tried it in the exact way as described, even try all the nonsense ways. The result is allways the same? Perphaps i make a logical mistake or an operational mistake. But id dont cant find the mistake. So i decide to write this whole bunch to describe the situation and the problem as good as i can and hope that someone could help me. Thanks a lot for reading all this and for trying to help me!