Recently, Microsoft rolled out the December cumulative update KB5072033 for Windows 11 versions 24H2 and 25H2, as well as for Windows Server 2025. This update altered the startup type of the AppX Deployment Service (Appxsvc) from 'Manual' to 'Automatic'. The Appxsvc service plays a pivotal role in the deployment, installation, and updating of apps available on the Microsoft Store. In the past, it would only spring into action when users ventured into the app store or installed apps. However, post - update, it will automatically kick in at system startup and continue to run in the background.

This change has stirred up a storm of controversy. For a long time, some users have considered Appxsvc a potential culprit behind sluggish system performance, especially on devices with lower specifications. There have been numerous cases where this process led to abnormally high CPU utilization, excessive memory consumption, and intense disk read/write operations. In addition, users have also voiced concerns about the severe resource - hogging nature of the Windows core update component Delivery Optimization (DoSvc). This component, which is enabled by default, takes up a portion of the upload and download bandwidth, thereby impacting the daily network experience.