Corrupted system files in Windows 11 can lead to a frustrating array of problems: random crashes, Blue Screen of Death (BSOD) errors, missing Start Menu icons, or apps that refuse to open. Fortunately, Windows 11 includes several powerful built-in tools to scan, detect, and repair these damaged files.
Below is a step-by-step guide, ranging from quick checks to advanced repairs. The System File Checker is your first line of defense. It scans protected system files and replaces corrupted versions with a cached copy stored by Windows.