How are suspicious files handled if computer is powered off?

If Comodo alerts to potential malware (or HIPS or any other alert) and the computer is powered off or shuts down before a handling selection is made, what happens to the file/action that triggered the alert? Is it blocked or quarantined by default?

well, if it’s notification, action has already been taken and if it is an alert waiting on user decision, then it’s in blocked state waiting for user to decide.

So when you re-start system, you may see alert again and make a decision in case application performs same action again.