The original disk was, for reasons I don't understand, a dynamic disk I cloned the original disk onto a USB external disk (500GB, 4 partitions) This has got confusing as well as problematic.įor the few interested I have now completed this task to my satisfaction
(I used WinDLG to write 0 to the first and last million sectors of my first attempt, and reformatted - it was a Basic disk at that time, but after I re-cloned the original disk onto it, it became a dynamic disk with the previously described properties - except every time I do something, DiskManagement tells me something different - once it said it was dynamic, offline because of a signature clash which reasonable, once it said dynamic, invalid but with a blank facing r-panel ) So it's not surprising that the clone was also a dynamic disk (dynamic, foreign and invalid when I first looked in DiskManagement). All the partitions were 'dynamic' in DiskManagement. The first thing to say is that I didn't notice that the original disk was a dynamic disk. I'd like to update and revise my original post with some new info. The source disk has a small number of partitions all either FAT or NTFS I am using a HP Pavilion dm4-1150ea (with standard for the model) 500GB HD, core i5 460M CPU, 4GB RAM, Windows 7 64bit Home premium. The disk showed no bad sectors under test. I don't mind losing what's on the disk now, if I can make the disk useable I do the cloning process again. So do I have to use another disk ? Would priming the disk by writing zeros to it everywhere (a la WinDLG) or running DBAN cure it of the dynamic disk syndrome, or are dynamic disks just worthless, scrap value only ? After some investigation, reconnecting the disk etc, I found that DiskManagement told me that the disk was still a Dynamic disk, and the space on it was marked as "invalid" or invalid disk. I then tested the clone by selecting boot from USB (or equivalent option), but the computer went straight into system recovery, instead of booting from the clone which was attached to the USB port. The cloning procedure was evidently successful, so the final screen of Disk Copy told me. I have a Seagate ST9500325AS - 2.5 inch, 500GB disk drive - onto which I have made a back up of my whole system drive, or tried to.īefore I started, in DiskManagement, the disk showed as a Dynamc disk, unallocated and unitialised.Īs I planned to make a clone (sector-by-sector) of my original disk onto this using Easeus Disk Copy 2.3 I thought that wouldn't matter and all format information such as it being a dynamic disk would be lost, being overwritten by the structure and contents of the original disk.
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