![]() Here, I will show you how to use MiniTool Partition Wizard to scan the hard drive for bad sectors for free. Then, you can use tools like MiniTool Partition Wizard, Hard Disk Utility, CrystalDiskInfo, and so on, to check that. When these issues occur, you may guess if there are bad sectors on the hard drive. They cannot be restored.Īlso Read: Bad Sectors Were Encountered During the Format? How to Scan a Disk for Bad Sectors Physical bad sectors may occur due to head crash, wear-and-tear, physical shock, or dust intrusion. Then, you can fix them by reformatting the drive. In case of power loss, bit rot (more likely on floppy disks), or firmware issues, logical bad sectors may occur. Once it becomes damaged, it is inaccessible and all information stored on that sector is lost.īad sectors can be “soft” (logical) or “hard” (hardware, physical), depending on what is making the sector inaccessible. What Is a Bad Sector?Ī sector is the smallest unit for reading and writing data on a disk, but it can be damaged for various reasons. Note that in modern disks, every sector has the same size. The part where the geometric sector and the track overlap is the disk sector. The platter is divided into multiple geometric sectors of the same specifications, starting from its center. ![]() The platter is divided into concentric circles, which are the tracks. As we all know, in an HDD, data is stored on platters. In the computer field, the term – sector – originates from the physical structure of HDDs.
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