I have a XP box which has been behaving perfectly until recently. Now, when I select Start, Shut Down, then click the shutdown icon, nothing happens, even if I wait for hours. The box is fully up to date with both MS updates and all programs, it is also free of viruses, malware, etc. I also tried hitting the Restart icon and that does nothing as well. I’m using MS Security Essentials and keep the disk defragmented.
Any ideas on how to troubleshoot this problem or what could be wrong?