[Solved] – Always getting message “Windows can’t update important files and services while the system is using them”

  Everytime you try to run the Windows Updater you always get the message  “Windows can’t update important files and services while the system is using them.  Save any open files and restart the computer, and try to check for new updates.“   This is caused by a Registry Key that has not been removed after a previous update. There […]