Windows 11 desktop becomes a full-page Harry Potter ad — and Bing Wallpaper users rebel by uninstalling the app in droves

Not-so-fantastic ads

News By Darren Allan Published 8 September 2026

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• The Bing Wallpaper app is serving an ad in Windows 11
• The advert is for a Harry Potter and Fantastic Beasts movie collection
• There's a rebellion against this blatant advertising, with a significant number of users saying they've immediately removed Microsoft's wallpaper app

Some Windows 11 users who've installed the Bing Wallpaper app have been treated to an unpleasantly in-your-face advert for Harry Potter.

To be precise, it's an ad for a collection of 11 Harry Potter and Fantastic Beasts movies, and, as Windows Latest reports, this appears as a full-page promotional image that becomes your desktop background.

This isn't happening for every Bing Wallpaper user, and it appears to be a regional rollout; but based on the plentiful Reddit feedback of the negative variety, it's being piped to quite a number of PCs.

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For the uninitiated, Bing Wallpaper is an app that serves up daily wallpapers to those who've installed the software — and note that it isn't installed by default; this is something you have to elect to have on your Windows 11 PC.

Nevertheless, it's an over-the-top move by Microsoft to shovel something like this onto the desktops of those who've chosen Bing to pick their backgrounds.

As one annoyed Redditor says, filing the Harry Potter wallpaper under the 'unskippable ad' category in the 'Mildly Infuriating' subreddit: "I had it [Bing Wallpaper] installed since up until this point it was a fairly harmless program that gave a variety of animals, environments or pattern backgrounds that rotate daily. Wtf?"

Replying, another Redditor observes: "Free software from a trillion dollar company means you are the product." Some folks responded to that to say that Windows 11 isn't free, but this Redditor isn't talking about the OS itself, but rather the Bing Wallpaper app, which is a free add-on for Windows, of course.

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