External hard drive for mac repair3/5/2023 Disk Utility allows you to repair your hard drive and fix disk issues. You lose some hard drive space after the deallocation, but your Mac will function properly. But you can, of course, deallocate the storage space occupied by bad sectors so that it is not used anymore. Image: Know SMART status using Disk Utility Use First Aid of Disk Utility to Repair the Hard Drive Also, Disk Utility may not support SMART on your external storage device. The information provided by the application is not comprehensive, but you can at least know whether your hard drive is OK or failing. Check Hard Drive's SMART Status Using Disk Utilityĭisk Utility uses SMART (Self-Monitoring, Analysis, and Reporting Technology) to check the status of your startup disk. Read on to know how to fix your hard drive containing bad sectors. Or, when your Mac freezes frequently or shuts down abruptly. The presence of bad sectors on your hard drive is detected when some of your files throw an error while you try to access them. You can’t read the data or write anything on to the bad areas through the read-write head. In case the bad areas of the platter contain stored data, then the data turns inaccessible. These damaged areas are called bad sectors. Generally, a hard drive gets scratches or dents due to jerks, mishandling, or ageing. Physical damage to a Mac hard drive can’t be avoided given the electro-mechanical nature of the device.
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