It could be good, but only for a testing purpose, because with the full OS sandboxed you can’t install any new SW, including Windows updates and drivers.
I have seen something similar in a hotel, where they offered a PC for the guests in their room.
At every reboot the PC came back to the original state, removing any modification the guest may have done.
Only administrators could make permanent modifications
Comodo had a product named “Comodo Time Machine” which did a better job than what you have mentioned above.
It offered a disk level, much deeper than File level (Virus Scope), OS Level restoration similar to DeepFreeze but with more control. It allowed us to take snapshots of working states of Drive and then restore to that particular state at boot.
We once hoped that this would be integrated in to CIS, but, somehow, the whole product was abandoned.
So, if ever possible, it is better for Comodo to integrate CTM in to CIS for this purpose…