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Best Solution for Repairing Bad Sectors on an External Hard Drive

by Edwin Liu | November 25, 2013 16:02 PM
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I have an external hard drive of 250 GB and it becomes very slow and when I open a file, error occurs very often. I thought the hard drive might have bad sectors and I used the Windows built-in tool to fix the bad sectors, but the problem still exists. I need to fix this, but what can I do to remove bad sectors on my external hard disk? Please help!!!

As a kind of storage medium, external hard drives are divided into two types: 2.5-inch for laptop and 3.5-inch for desktop computer. An external hard drive is very useful and it can be used expand the storage space of a computer and exchange data of large capacity between computers. Many people also use an external hard disk to backup the important data. Also an external HDD is very easy-to-use. In most cases, you just need to connect it to a computer using a USB cable and then you can carry the read and write operations on it. I bet most of the computer users have at least one external hard drive.

However, like the user said above, when you use the external hard drive for a long time or some wrong operations are carelessly done, bad sectors will appear to affect the basic operations on it and even shorten the external hard disk’s life span. Then what? You may lose the important data stored on it, which is truly a disaster for anyone. Then how to avoid this unlucky situation happening? First, you should treat the hard drive very carefully. Here are some tips:

  1. USB cable is used for connecting the devices and transferring data between the devices. Also it is the supple line when the external hard disk is working. Shorter USB cable is always preferable as long cable will lead to resistance increase and data interference.
  2. If you use a desktop computer, you should plug the USB cable for connecting the external hard drive to the computer into the USB port at the back of the motherboard. It is for the same reason in tip 1.
  3. When using a 10 GB external HDD, the power supply by a single USB cable probably is not enough and this may cause the external hard drive can’t work normal. So the external auxiliary DC regulated power supply is needed.

If damages are caused after all, you should take other measures to rescue the external hard drive. For the smashed or broken external HDD, you should replace it with a new one. For the external hard drive with bad sectors, you can try to fix them using hard drive repair software. The Windows built-in tool will fix the logical bad sectors (right-click a drive letter, then Properties -> Tool tab -> Check Now -> Scan for and attempt recovery of bad sectors). As to the physical bad sectors of magnetic error, you can use the wonderful Abstradrome HDD Regenerator to repair the bad sectors.

Below is the guide for you to fix bad sectors in external hard drive:

  1. Download HDD Regenerator from here. Install and open it on your computer.
    HDD Regenerator is specially used for fixing bad sectors of magnetic error. It can easily detect the physical bad sectors and using an advanced algorithm to repair the physical bad sectors on external hard disk surface. It also works on the built-in hard disks with no file system limitation. FAT, NTFS, etc. are all supported. It also can repair delays.
  2. Connect the external hard drive to your computer. (You are strongly recommended to connect the external hard disk as internal. Also you should back up the data on the external hard drive in case of any data loss happening.)
  3. For the following steps, you can refer to this article to finish the external hard disk bad sector fixing job.


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