Overview
- The Bing Wallpaper app delivered a full‑page promotional wallpaper for an 11‑film Harry Potter and Fantastic Beasts collection that replaced the desktop on a subset of users, according to reporting on Tuesday.
- The ad appeared through the optional Bing Wallpaper add‑on rather than a Windows default, and its delivery varied by PC and region, suggesting a staggered or targeted rollout.
- Microsoft’s Bing Wallpaper download page notes users may receive “in‑app notifications with promotional offers,” language reporters say did not make it clear a wallpaper could become a full‑screen advertisement.
- Users posted screenshots and complaints on Reddit and other forums and many said they immediately uninstalled the app in response to the promotion.
- Reporters linked the incident to ongoing frustrations over advertising in Windows and noted there was no public clarification or rollback from Microsoft in the latest coverage, a development that could prompt calls for clearer opt‑in rules or stricter disclosure.