SFC

Windows operating systems include built-in tools for maintaining PCs, allowing users to monitor system health, repair corrupted files, and recover from boot failures with minimal intervention. Task Scheduler automates maintenance tasks by triggering them based on schedules or events, accessible via the Start menu or taskschd.msc. It can activate tasks at fixed intervals, on startup, during idle periods, or in response to Event Viewer entries. Tasks should run with the highest privileges and can be configured to execute regardless of user sign-in status. The Settings tab allows missed tasks to run as soon as possible. DISM (Deployment Image Servicing and Management) is a command-line utility that repairs the component store, essential for installing updates and restoring system files. It offers three inspection levels: CheckHealth, ScanHealth, and RestoreHealth, with the latter requiring an internet connection for downloading replacement files. DISM logs operations in C:WindowsLogsDISMdism.log. SFC (System File Checker) verifies and repairs core operating system files using Windows Resource Protection. The command sfc /scannow checks all protected files, while /verifyonly provides a report without changes. SFC's effectiveness depends on the integrity of the component store, making it essential to run DISM first. Results are logged in C:WindowsLogsCBSCBS.log. Quick Machine Recovery (QMR), introduced in Windows 11, addresses boot failures by connecting to the internet to find solutions when repeated boot failures are detected. QMR is enabled by default on unmanaged devices and can continuously check for fixes. It is designed to respond to widespread issues rather than unique problems and may not work effectively on older hardware or without a network connection. Together, these tools provide a comprehensive approach to system maintenance in Windows 11, ensuring the operating system remains healthy and efficient without additional software.