Hard disk drives (HDDs) consist of spinning disks coated with a magnetic material where data is stored. Over time, these disks can develop bad sectors, which are areas of the disk that can no longer store data reliably. Bad sectors can cause data corruption, system crashes, and other problems.
It is important to regularly check for bad hard drive sectors to identify and isolate any potential issues. By doing so, you can prevent data loss and maintain the health of your hard drive. There are two main ways to check for bad hard drive sectors: using software and using hardware.