Ok, try this, making sure you antivirus software is disabled....
Run windows update, note the time and check in the Event Viewer to
see if there is any specific errors regarding services at the time you ran it:
Windows key + R Eventvwr.msc
Then, verify that the "COM+ Event System" service is not disabled or not
Press Start and Run, and then run this command:
Windows key + R services.msc
Locate the "COM+ Event System" entry, and double click on it. Startup type
should be set to "Manual", and if the service is not already running, press the
Start button to see if it starts successfully.
Let me know what happens...