I use CIS with no AV & CIS set to Internet Security with default settings.
I tried trojansimulator.exe from testmypcsecurity.
It was sandboxed & trojansimulator mentioned installed.
I reset the sandbox & ran trojansimulator & it mentioned not installed.
So reset sandbox reverted trojan install - This is the way sandbox works & correct.
I tried deletevolume.exe from testmypcsecurity.
It was sandboxed & E drive was deleted.
I reset the sandbox & E drive still didn’t appear.
I manually went to storage management & asssign the letter for E drive.
Though one can manually assign the letter, CIS sandbox doesn’t protect against the deleting of drive?
I tried to run the application in question in the sandbox but was unable to do so, unable to run it on my system.
Please test it again when you have the posibility, both with the auto-sandbox and by manually right-clicking and choosing to run in COMODO Sandbox, also make sure to reboot after the sandbox has been reset. If the issue still persists please create a bug report.