Microsoft fixes the Windows 11 bug slowing down some Dell PCs

Microsoft released an unscheduled Windows 11 update KB5121767 to fix performance issues affecting certain Dell PCs with Intel Innovation Platform Framework drivers. PCWorld reports the update resolves conflicts that caused battery life and system stability problems, lifting Microsoft's previous block on July's security update. The cumulative update includes security enhancements and AI component improvements, available automatically through Windows Update or manual installation. Over the weekend, Microsoft released an unscheduled Windows 11 update, identified as KB5121767 for users on versions 24H2 and 25H2. The patch is intended to resolve an issue that's occurring on a limited number of devices following the latest Windows updates. Microsoft highlights this in the official release notes . The issue primarily affects certain Dell PCs and laptops running an Intel driver for the so-called Intel Innovation Platform Framework (Intel IPF)--the same machines that were blocked from receiving some Windows updates .