I have been having a problem with my laptop for awhile now. When i start it up, sometimes i get problems such as a black background, no internet, audio service, and some of my desktop files are missing. A message also pops up. The message says "Failed to connect to a windows service: Windows could not connect to the System Event Notification Service service. This problem prevents limited users from logging on to the system. As an administrator user, you can review the System Event Log for details about why the service didn't respond." I really need help with this. It's getting very annoying.