My 3+ year-old Z12 has died.The original C-drive SSD is no longer visible/available. The other 3 128GB are. I've wiped them clean, hoping to get one accepted as a new C drive - no luck so far (apart from formatting it and labelling it C; along with the other 2 as D & E). The fan is also quite noisy, so it would be nice to renew this at the same time. I would like to get the Z12 working again, with just the 3 still-working SSDs. There is an X Drive, which I think may be the original restoring setup. It does have a Windows folder on it. My rescue disks don't get any action. I got the message: "The system image restore failed. Error details: A data disk is currently set as active in BIOS. Set some other disk as active or use the DiskPart utility to clean the data disk and then retry the restore operation. (0x80042406)" I would appreciate guidance as to whether what I would like to do is even possible; and then how best to do it. Would I be right in that it would probably be best to strip it down and physically replace the defunct C SSD with one of the others (on the basis that the BIOS is physically looking at that slot)?