If a hard drive's head touches the rotating plater, that area will be damaged. Physical/hard bad sectors are caused by physical damages to the storage itself, such as scratches, magnetic field issues, or wear and tear over time. There are roughly two types of bad sectors: physical (hard) bad sectors and logical (soft) bad sectors. In fact, it is very common that a disk has bad sectors after being used for a long time. These phenomena show that there must be bad sectors on the disk. Something weird will happen if the hard disk has bad sectors, for instance, operating system cannot boot normally, hard disk can't be formatted, the drive becomes completely inaccessible, error is reported when you attempt to open a file, etc. Further reading 2: What to do if my hard drive has bad sectors?Ī bad sector is a sector on a hard disk that cannot be used due to permanent damage (or an OS inability to successfully access it), such as physical damage to the disk surface (or sometimes sectors being stuck in a magnetic or digital state that cannot be reversed) or failed flash memory transistors.Further reading 1: How to effectively test disk health status by checking S.M.A.R.T.Guide #2: How to repair bad sectors using a free bad sector repair tool?.Method 2: Scan the drive for bad sectors in File Explorer.Method 1: Check bad sectors with DiskGenius Free Edition.Guide #1: How to check bad sectors for hard drives or USB drives? (3 Methods).
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