Thought I would convert my current XP system to a Virtual Disk for use under Virtual PC 2007. The process started ok, volume was mounted and partition was copied with an error, the progress bar got to 40% then a window popped up cannot complete copy operation with open files. So I clicked retry - nothing happened. Clicked view open files and was presented with a list that matches my task manager. Clicked close open files and retry and nothing happened apart from a confirmation dialog. So it seems the cluster copy cant be completed with open files, one of which (ESET AV) cant be closed anyway due to self protection. Does anyone test these functions? A skip open files button may have been useful to complete the task.