For traditional hard drives, physical bad sectors may appear due to errors during production or during use. The error may be due to the dropped hard drive, the reader touching the plate surface and damaging some sectors, air or dust may have entered the drive, .
Bad logic sector occurs by software related issues . For example, if your computer is turned off due to a power outage or unplugging the power cord, it may cause the hard drive to suddenly power down while writing data. In some cases, it may cause some sectors on the hard drive to contain data that does not match their error correction code. Therefore, this area will be marked as a bad sector, or bad sectors.
In addition, viruses and malware can also cause problems for computer systems and create logical bad sectors. Over time, they can spread throughout the hard drive.
The fact that bad sectors will cause serious consequences. Even if your computer's hard drive is working normally, it may contain bad sectors and they may develop and corrupt your data. This is why you should always back up data in your computer. Backup is the only thing to do to prevent data loss.
When the computer detects and notices bad sectors, the system will flag the bad sectors and ignore them every time it writes data. The broken sector will be located and the data will only be written to another area. However, if you have written important data to that sector before an error occurs, it cannot be restored.
If the hard drive has some bad sectors, it doesn't mean it is going to crash. However, over time, bad sectors can spread to other places and it is time to replace the new hard drive.
Fortunately, the Windows operating system has a built-in Disk Check tool (also known as chkdsk) that helps you scan your entire computer hard drive for bad sector detection and detection, mark them and fix if possible. You can run this tool from Windows' Run Command command line by typing the command line chkdsk. Or you can right-click on any drive partition to check, select Properties, select the Tools tab and click the Check Now button on Error-checking. Finally press the Start button to start the scanning process.
Good luck!