== == You might be able to get Windows to boot into Safe Mode. As soon as you press the power button, begin pressing the F5 key, over and over again, until the computer begins to beep. (If it does. Some won't.) This should bypass the files that Windows normally boots from, and boot Windows into Safe Mode. If you are successful, look at the contents of 'C' drive to find out if any files have been added, or changed. You may need an experienced Windows technician to help you.