Windows has two inbuilt disk utility command options named CHKDSK & SCANDISK. Any one can be used to fix hard drive bad sectors, blocks, registry errors and many other which is responsible for uncertain shutdown or system restart in loop. First & foremost, you need to know why these two options are so popular among Windows users and when they are used.
Microsoft introduced this disk utility command since before 2000 and can be found in all the latest versions of Windows OS. CHKDSK command can be used to check the file system integrity status, directories, bad sectors, blocks, & registry errors as well as fix them. It is mostly helpful in the case when system becomes unbootable or giving you a series of popup error messages.
You can use it directly by going to command prompt (Press CTRL + Run & Type CMD) or by going to explorer, right click on any specific drive,go to properties option and then select Tools tab, where a button is located named ‘Check Now’ (see in the image below).
Linux & MAC operating system uses the same fsck command (stands for file system check) to check hard drive errors and fix it.
SCANDISK is an improved GUI based method unlike CHKDSK utility to manually check physical errors on the hard drive as well as file system structureand repairs them automatically. However, if you running system using NTFS file system method, you cannot use this feature as it is restricted by Microsoft to only for older versions of Windows like 2000, NT etc.
You can run SCANDISK graphically by going to Start – Programs – Accessories – System Tools and click on SCANDISK (See in the Image below)
Why Some of My Files was Lost after Performing CHKDSK Operation?
Failed startup, virus corruption and file system damages are the reasons after which the system needs to run check disk utility. Either it will automatically initiate just after starting the system (though you have 10 seconds on click cancel on it) or you can run it yourself by using command prompt or by going to drive properties > tools tab> Check Errors.
In both cases, check disk utility usually checks your file system for errors and can mistakenly mark either system files or any of your precious file that looks dangerous for CHKDSK utility and then tries to repair them. In such cases, CHKDSK utility removes the file addresses, delete the space it covers and mark them as ready to store any new files. So if you believe that some of your files were missing or deleted due to running check disk utility, you need to stop using the drive and take help of any professional recovery software.
Data recovery software is an efficiently designed program to scan and recover the lost, hidden or infected data from the hard drive and other removable media. All you need is to download the professional recovery software from a reputed company having expertise, experience and equipment’s in recovering data from such conditions.