After a sudden power loss forcing the computer into a hard shut down, the first thing I noticed was my UAC setting being reset from "Never notify" to the default. Since that has been changed, I think it's possible other things have been changed as well. Why would these settings change after a hard shut down? Is it possible that the shutdown corrupted some windows settings file that stored that UAC setting? If so, is there a tool I can use to check my windows files for further corruption?