@gn_ro Not exactly sure why you run into this issue but looking through the code and searching the web for this error message I might have an idea what’s going on. After the deployment (through partclone.dd in this case) FOS looks for any NTFS partition, tries to mount it and see if it can modify registry files to change the hostname of the machine (pre Windows boot up!). This feature is called “early hostname change” and can be turned off. In the FOG web UI go to FOG Configuration -> FOG Settings -> section General Settings -> uncheck CHANGE HOSTNAME EARLY and save settings.
Unfortunately this can only be turned on and off globally. Most people want to keep that turned on and so might you for most of your machines. But I think it’s appropriate for you to quickly turn it off whenever you need to deploy that special machine.