Large Windows updates involve reconfiguring system files, installing components, updating drivers, and initiating post-update tasks, which can temporarily slow down performance, especially on older hardware. The Windows Module Installer (TiWorker.exe) finalizes updates and may trigger cleanup and maintenance tasks, consuming CPU and disk resources. Outdated or incompatible drivers can hinder performance, leading to sluggish boot times and reduced gaming frame rates. The indexing feature may intensify after a major update, increasing CPU and disk usage. Major updates can reset user-defined settings and reintroduce background processes and applications, causing additional resource consumption. Cumulative updates may lead to performance issues due to memory leaks or driver conflicts, and Microsoft provides a "Windows release health" dashboard for tracking known issues. Slowdowns after updates are typically temporary, lasting from a few minutes to several hours, but persistent issues may require further investigation.