Hello, I always make images of the whole disc because I want to have the mbr in the image. That is why the hidden diagnostics partition of my DELL is included in the image. Sometimes when I start to make an incremental of thw whole disc, it shows me an "Internal error: unhandled exception" and the process is stopped. In the list of events it says (directly translated from German): "Action with the partition '0-6' was terminated with the error code 1 'Internal error: unhandled exception'" (TrueImage calls the hidden DELL partition "0-6" ; it has no drive letter) I had this sometimes, but when I restart the process of making an incremental of the whole disc then it mostly works. With full images I hadn't have this error yet. But I only make full images once a month. Here are the information TrueImage gives about this partition: partition: FAT16 Flags: Pri Capacity: 62,72 MB Used: 6,79 MB Type: "DS: FAT16 Partition: 0xde (EISA configuration)" Thanks for help!