Comodo uninstalled itself due power shutdown

Something strange happened yesterday. I was online when suddenly the computer shuts down due a short power shutdown. After I restarted the computer, I discovered that Comodo was “gone”. BoClean was still present but the Firewall was blown away from the pc. Strange, I can’t believe that a security program uninstalls itself due a power shutdown. I had to install it again and everything is working again. Any ideas what happened??

When Windows has a crash like that it will automatically do a system restore or a known last good restore on its own. Evidently your last known good was before you installed the firewall.