Microsoft has concluded support for Windows 10 and introduced Windows 11 25H2, which has a feature called Delivery Optimization that is reportedly consuming excessive system memory, leading to sluggish performance on some PCs. A user on Reddit noted that Delivery Optimization may have a memory leak, as its memory consumption is disproportionately high even when not actively needed. This feature is designed to expedite the download of Windows updates and applications by sharing downloaded packages with other devices. However, a recent update has caused the AppX Deployment Service to activate automatically at startup, increasing CPU, memory, and disk usage. Users can disable Delivery Optimization to alleviate memory strain, though this may result in slower download speeds for updates. The steps to disable it involve accessing Windows Update in Settings, navigating to Delivery Optimization, and toggling off the option to allow downloads from other devices.