As of macOS 10.13 Apple systems running Solid State disks are, by default, being converted to use an updated file system called APFS on the boot disk. Deep Freeze does not support installation on a APFS based system and cannot be used on systems that have been upgraded to macOS High Sierra and converted to APFS at this time.
While Faronics does intend to support AFPS in a future release of the Deep Freeze product we at this time cannot provide a timeframe for support. For customers who wish to upgrade to High Sierra, and run Deep Freeze this document will detail a process for performing the macOS upgrade and suppressing the conversion of the file system to APFS.