The company didn’t share an ETA so we don’t know when the fix for the wallpaper bug will be available for Windows 7 users. That said, it’s good to see Microsoft accepting their mistake and deciding to fix the bug for all the users. Windows 10 tip How to disable image compression for desktop wallpapers on Windows 10 Windows 10 by default compresses JPEG images you set as desktop wallpapers, but you can use this guide to show. Microsoft has released updates to unsupported Operating Systems in the past but those were usually to patch critical vulnerabilities. The updated support blog now reflects the decision but there’s no information on what made Microsoft change its decision. We are working on a resolution and will provide an update in an upcoming release, which will be released to all customers running Windows 7 and Windows Server 2008 R2 SP1. However, it looks like the company has gone back on its word and decided to release an update for everyone. So, obviously, the code is there to let you do this. Open your lossless BMP image in Firefox, right click the image, and select Set As Desktop Background This solution is weird since it lets you use a bitmap as your wallpaper.

Microsoft later confirmed that it was indeed a bug but said the company would fix it only for customers who purchased ESU, i.e. Found a solution to have your desktop wallpaper image without the jpeg artifact of windows 7 compression. The wallpaper bug affected all the Windows 7 users who use stretch option while setting up wallpapers. We reported earlier that Windows 7 users were complaining of their wallpaper being replaced by black screens when they install the important KB4534310 and KB4534314 updates for Windows 7.

Windows 7 wallpaper compression fix