"Even in safe mode the computer opens to this screen only. There is no ability to close the window or to use ctrl alt delete."
That's why I recommended using the boot disk to go to safe mode.
As stated earlier, you cannot get to windows apps so don’t bother trying. You need an emergency boot disk such as Kaspersky. I believe you can make a boot disk from the Kaspersky trial version (using a friend’s machine). Set your machine to boot off the cd and run the antivirus app.