Bad- Sector is a very serious error for a hard drive, it can cause loss of important data. The heavier it is, the bigger damage it will cause.
When your hard drive detects Bad- Sector, if it is not heavy, you can use specialized software to remove Bad- Sector. If it is more severe, you should backup your data to another drive, because your hard drive may corrupt at any time.
Cut Bad sectors on hard drive by PartitionMagic
Step 1: Insert Hiren BootCD in CD / DVD Rom, in BISO, to set the computer to boot from CD / DVD Rom.
Once that, move the light part to Start BootCD then press Enter to continue.
Step 2 : Scroll to Partition Tools... then press Enter.
Step 3 : Move to Partition Magic Pro 8:05 and press Enter.
Then the program will list parameters of your hard drive.
( In this example, the hard drive has 1 8Gb partition)
Step 4 : If your computer has multiple drives, select the hard drive with Bad- Sector and memorize the parameters of the partition to mark that Bad- Sector.
After determining the Bad- Sector area, click the red X to delete the partition.
Step 5 : When the notification appears, enter OK from the keyboard into the box and click OK to confirm.
Step 6 : After deleting bad sector, you need to create a new partition by :
Click on the letter C to create a new partition.
Step 7 : Set the parameters as the image below, then click OK.
Step 8 : Then click Apply to repartition. Exit the program, restart your computer.
Note: If the Bad- Sector appears in the partition with operating system, you must re-install and re-zone Bad- Sector to avoid data loss. You should back up the data before zoning Bad- Sector.
Wish you success!