A nasty sector is a portion of a tough disk drive (HDD) that has develop into unusable as a result of bodily harm or manufacturing defects. Unhealthy sectors may cause knowledge loss and system crashes, so it is essential to have the ability to examine for and restore them.
There are a number of methods to examine for dangerous sectors on an HDD. One frequent technique is to make use of the CHKDSK utility, which is included with Home windows. CHKDSK will scan the HDD for dangerous sectors and try and restore them.