chkdsk

CHKDSK, short for "check disk," is a built-in Windows utility that scans and repairs disk errors on your hard drive or storage devices. It helps identify and fix issues like corrupted files, bad sectors, and file system problems that can lead to data loss or slow performance. When you run CHKDSK, it assesses the health of your disk and can either repair errors automatically or provide information about what needs attention. Regularly using CHKDSK can help maintain your computer's reliability and longevity, ensuring your data remains safe and accessible.