How to Repair Bad Sector?
What are bad sectors and are they dangerous to my computer?
Hard drive is composed by lots of small sectors. A bad sector is a sector that becomes unusable due to the permanently physical damage. One or more sectors might go bad occasionally. One symptom from bad sectors is your hard drive may appear to run very slowly and take very long time to access files. If you are lucky, you only lose the data stored on these bad sectors. However if these bad sectors affect system files, your computer might become unstable or even crash in the next
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