When restoring one of our servers (that is a virtual machine) I was getting the error message below just before the drive data starts to copy over.
The system image restore failed.
Error details: Element not found. (0x80070490)
As it turns out this error message relates to the restore program not detecting the required number of hard drives attached to the VM that I am restoring the data to.
The fix is simple – assign the extra drives required. The slide show below goes into this in a little more detail.
On further thought I remembered that this particular VM was originally on a physical machine – hence the extra drive came from the tiny partition (usually 100-500MB depending on OS) that Windows creates when doing a first time install that’s used for bitlocker/bootloader stuff. Either way your server won’t work without it and neither will the restore.