Bing Wallpaper app opens Harry Potter's chamber of ads

Microsoft has pumped ads into the Windows Start menu and pushed users through setup screens promoting its services. Now it's bringing advertising to the Windows desktop with a Harry Potter promotion in its Bing Wallpaper app. Users of Microsoft’s Bing Wallpaper app took to Reddit and Microsoft’s own Learn site, where users can post questions about Microsoft products and services, to ask why their usual rotation of scenic desktop wallpapers was interrupted Monday by an ad for Harry Po