The latest optional Microsoft update for Windows 11 is causing significant problems for users who decided to install it. The package identified as KB5120998, corresponding to build 26200.9278, was promising improvements to the operating system, but ended up causing desktop failures for users. The update was made available as optional through Windows Update, meaning it was not automatically installed by Microsoft for all users. Many users reported that their taskbars and desktop icons became misconfigured or stopped working correctly after installing this update. Microsoft acknowledged the existence of the problem and recommended that affected users uninstall the KB5120998 update to restore normal operation of their systems. This situation arises at a time when Microsoft has been facing several criticisms regarding the quality of its recent updates for Windows 11, with several users reporting similar problems in previous updates. The company is expected to release a fix to resolve the problems caused by this optional update in the coming weeks.
Technology
Windows 11: new update ruins users' desktop environment
SAPO Notícias29 August 2026 at 15:00
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