Hard disk bad sectors is how did

1. hard at work suddenly shut down. When the hard drive to work, are in general in a high speed rotation, if we turn off the power abruptly half-way, might cause severe head and friction and damage to the hard disk
2. dust or water. Will Effect of heat dissipation electronic components, such that the temperature of the circuit components is increased, the occurrence of leakage or burned components. Dust may also absorb moisture, corrosion of internal hard disk electronic circuits, causing some strange problems, so the dust volume is small, but damage to the hard disk can not be underestimated
3. Temperature temperature life of the hard drive is going to affect. Hard work will produce some heat, the heat dissipation problem in use. Temperature is preferably 20 ~ 25 ℃, low or high clock frequency change. The temperature of circuit components can also cause failure of the hard disk, magnetic media will be caused due to thermal expansion effect a recording error. Temperature is too low, moisture in the air is condensed on the integrated circuit components, causing a short circuit
4. Near strong magnetic hard disk, such as speakers, speakers, motors, radio, cell phone, etc., the hard disk data recorded by a magnetization damaged
5. frequently hard to read, hard disk platters aging overload.
tips: using computers, try not to use rough, so as to avoid data loss and hard disk devices and other life!