If you run task manager (I'm not sure how this differs among different versions of Windows) as administrator you might be able to see a services tab and find something your message points at (does it name the service?). Right clicking on a service tends to give you the ability to do things like stop and start, or go into properties and set it to disabled, manual, auto, so on. See if you can find the service, and if that service can be started or not. Sometimes Windows Update will break something, or sometimes other updates (such as firmware) will cause a service to be disabled (imagine if a driver is updated, but firmware update is also required...but you haven't added the firmware update...or your hardware isn't capable of that update because it is an older generation).