You are at a command prompt on Windows. You suspect that some Windows system files are corrupted. What command should you use to scan for and repair corrupted system files?

The System File Checker (SFC) is a command-line utility that checks and validates the versions of your computer's system files. If system files are corrupted, SFC will replace them with the proper versions. The /scannowoption scans and repairs files, whereas /scanfile only checks a single file. The /verifyonly option examines the integrity of protected system files but does not attempt to fix them. The /verifyfile option is used to check the integrity of a specified file.