Larry has been having a strange issue booting up to his Dell laptop, which is now a blurry image. Leo says that when you log into Windows, the login screen pulls a background image for it. Microsoft has a "blur" effect with the May 2019 update (vs. 1903) for the login screen. It's called "transparency effects." He can disable it in personalization settings, under colors. Check out this article from TechRepublic.