I deleted (foolishly using Windows Disk Management) the first partition of several on a disk (created using DD10) on a Windows XP Pro SP2 system - initially created as Primary, LOGICAL (accidentally created as Logical - had initially been Primary), Primary, Extended with 6 logical partitions (D, E, F, G, H and I) and converted via DD 10 to Primary, (this is the one that was deleted intentionally) PRIMARY, Primary, Extended with 6 logical partitions (D, E, F, G, H and I) and as a result of deleting the first primary partition, partitions E, F, H and I also disappeared and Window now shows the total capacity of the disk far exceeding its actual capacity - the 500 GB drive is shown as occupying about 1.5 TB. Both DD 10 and Recovery Expert now hang - neither will run fully - when the affected hard disk (SATA2) is attached to the computer. They run fine when it is not. I can start each and get through a couple of screens and then DD10 disappears completely and Recovery Expert's window indicates it is "not responding". In both cases diskdirector.exe keeps running at 50 % utilization. Acronis tech support has had me run several other versions of DD 10 to no avail. I am waiting, impatiently, for tech support to explain what happened and perhaps help me to recover the deleted partitions. I am wondering if anyone can shed any light on what happened? I know that DD 10 can create a wider range of partitions than Windows XP Pro's Computer Management Disk Management can properly handle and that despite having created what looked like valid Windows partitions I must have ended up with something that Windows only seemed to recognize. Any insights, anyone? Perhaps a similar experience? Thanks.