My wife just got a Comodo update and immediately every program that will run has the sandbox green border. Many programs will now not run and she can’t print. Internet Explorer will run (green border), but Chrome won’t start. Under the Sandbox tasks tab, the “Open Advanced Settings” button no longer works. Anybody have any ideas or run into this situation? I might know more when I can see her laptop tonight.
On what Windows is your wife’s laptop? If on Windows 7 please install Windows KB 3024777 update. It removes broken update KB 3004394 that was released this week. See if that makes a difference in your situation or not.
When considering reinstalling CIS please follow Most Effective Way to Reinstall CIS to Avoid/Fix Problems by my colleague Chiron. It will provide a reliable and clean starting point.