We have been using HDM 15 for our disk images to roll out PC's quickly for years with no issues. We purchased a new Dell OptiPlex 3060 Micro Form Factor (MFF) Business Desktop PC, Intel Six/Hexa Core i5-8500T, 16GB RAM, Intel PCIe Nvme 512GB SSD and when we get into the HDM it is only showing the external devices (USB stick, and USB external hard drive) - No internal hard drive. We are booting in UEFI and not legacy. This is the first device we have ever had an issue on, and the only difference is that it's a Micro Form Factor otherwise all specs are the same. Any guidance is greatly appreciated.