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- Jul 12, 2017 at 11:44 am #20781Parvinder SinghKeymaster
If at the start of your computer the disk behaves strangely or notes that it becomes very slow, it is symptom that something is not right on your hard drive . The most common fault is the bad sectors . Here are the keys to save these disks and recover the data they contain. How to Repair Bad Sector on Hard Disk in Windows 10/8/7
1: Hard Disk Diagnostics
The first step to know the nature of the damage and damage to your hard drive is to analyze its status and, based on the results obtained, make a diagnosis of the cause and try to recover it .
One of the easiest diagnostic tools to use is CrystalDiskInfo that you can download from your web page . This free tool will analyze your hard disks and show you their health status. This time uses its version 6.0.4 portable.
Download the software and unzip the file in an accessible location. For example, on the Desktop. Then connect your external hard drives , if you want the program to analyze them. Next, go to the folder where you have unzipped CrystalDiskInfo and double-click the executable file DiskInfo.exe . Then the program will start and, after a brief analysis, it will show the health status of the storage units connected to the computer.
If they all show a state of greeting Well , you do not have to worry. It simply performs periodic checks. Problems arise when they appear as either at Risk or Bad . In that case, you should be thinking about buying a new album, because its useful life is coming to an end.
In the details box you can see what kind of failure your disk is suffering . Defective sectors are most likely to have been detected . From the moment it is diagnosed that there are bad sectors or failures, that disk will no longer be reliable. You will probably be able to extend its useful life for a few weeks, months or even years, but these problems will be repeated more and more often. Therefore, never use a “recovered” disk to save important data or backups. How to Repair Bad Sector on Hard Disk in Windows 10/8/7
2: Prepare the tools to repair your disks
Most hard drive recovery tools do not work under Windows , but do so directly in DOS. One of the most famous is Hiren’s Boot that you can download from here .
This complete toolbox contains some of the utilities necessary to recover your disk with bad sectors .
To use Hiren’s Boot you will need to create a LiveUSB, from which the necessary programs will start without using Windows. To create this LiveUSB you will need the ISO image of Hiren’s Boot , a USB drive with at least 1 GB of space and the Universal USB Installer program, which you can download from your web page , with which you will create the LiveUSB.
After downloading the Hiren’s Boot ISO file , unzip it to a folder on your desktop. Then connect the USB drive to your computer and double click on the Universal USB Installer executable . Now, choose the Hiren’s Boot CD option from the drop-down list in Step 1 . Then, click on Browse and locate the ISO file of Hiren’s Boot that you have downloaded and decompressed. Then select the USB drive you will use. Make sure the drive does not contain any important files, as these will be deleted. Check the Format your unit (Erases Content) box to format the USB drive. Finally,
When finished, restart your computer and set the BIOS to boot from the USB drive, rather than from the hard drive as usual. If you do not know how to do it, consult the instruction manual of your computer or your motherboard.
3: Access Recovery Tools
Now that you know that the cause of the failure is the bad sectors of your hard drive , and that you have already prepared the tools to repair these sectors – or at least to try – the time has come to get down to work.
We can not guarantee the success of the operations that we show below, since this will depend a lot on the degradation of the disk but, at least, nobody can tell you that you did not.
There are two types of defective sectors : those that are caused by physical damages to the surface of the plate where the information of the hard disk is written and the failures produced by badly magnetized sectors. The former are irrecoverable, and what little can be done about them, involves the loss of data. So, start by trying to recover those that are badly magnetized and cross your fingers to make them the vast majority of those affected. How to Repair Bad Sector on Hard Disk in Windows 10/8/7
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