Computer Hard Disk rotates in every second when we use .So it is one of the most hottest place inside the computer. Hard Disk can be damaged in many ways. "Bad Sector Formation" is a Common Hard Disk failure.Actually it is a physical damage some of our hard disk parts become unreadable or useless. I saw many sites when i face Bad sector in my computer that give software for fixing Bad Sector problem. Then i asked one Computer expert , then he replied me that Bad Sector is a Physical problems once you have Bad sector in your Hard Disk it can't be fix .There may be Software Bad Sector but hardware or Physical Bad sector can't fix. There are many reasons for Bad sector but we can prevent Bad Sector formations.
In Windows 7 Operating System ,there is a tool for checking Bad sectors in Hard Disk.Goto your My computer windows , then select each partitions properties .Then select "Tool" .
|Windows 7 bad sector checking|
How to avoid bad sector
1. Proper Windows turn off
2. Defragment disk once in a week
3. Install good Antivirus software
4. Find a Cooling method to cool down our system
5. Use it on the Dust free environment or try to find a place with less dust
6. Use Cooling pad with Netbooks
7. Turn off system after 8-10 continues work