How to Remove Bad Sectors from Hard Disk Using CMD

Remove Bad Sectors from Hard Disk

Microsoft Windows operating system has evolved to be even stronger day by day and it installs a lot of Windows Updates, patches, bug fixes and other files that keep the operating system up and running smoothly. In this process, Microsoft Windows may encounter problems related to bad sectors and corrupt files on the hard drive. This may lead to severe issues and may crash your Windows operating system to run.

It is not easy to remove bad sectors from a hard drive. Many of us are not even aware of how to remove bad sectors from a hard drive. You may need to run several checks depending on the type of hard drive. Files are stored on the hard drive in NTFS or FAT file formats. NTFS stores the data in Master File Table (MFT) while FAT formatted hard drives save data in File Allocation Table (FAT) that was the old file system. These file systems keep a record of the file name, date, size, type, and physical address of the file.

What is a Bad Sector?

As the name suggests, a bad sector is a sector on hard drive with corrupt, inaccurate or missing file information that is hard to read/write. When these sectors don’t respond to a query, you receive an error message or face a system crash situation. You may also read ‘File record segment is unreadable’ error message in such cases. Here are some possible fixes to such situations.

Repair Bad Sector Using CHKDSK Command

CHKDSK stands for Check Disk is a Windows inbuilt utility to check the hard drive for errors and fix them permanently. This is the first and effective way to remove bad sectors from the hard disk and repair the corrupt files.

Remove Bad Sectors from Hard Disk

Step 1. Press Windows key and type CMD in the search box.

Step 2. Click on ‘Run as Administrator’ from the options in the right-hand side window.

Step 3. Command prompt window will open to enter the command. By default, the cursor is on C: Drive where your operating system is stored.

Step 4. Type the following command to run check disk and fix the bad sectors on the hard drive. Type chkdsk C: /f /r /x and hit enter. /f parameter is to fix any found bad sectors, /r is to locate and recover readable information from the sectors, and /x is to force the drive to dismount before initiating the process.

Step 5. Once the process ends, the system will restart and come back to the welcome screen. You can look for more relevant information on CHKDSK on the Microsoft page.

“Please Note: It is not recommended to interrupt the CHKDSK process as it may result in even worse situations. CHKDSK process can only work on the local disk and not on the network drive. There shouldn’t be any open file or running process while running CHKDSK command. It is recommended to run CHKDSK command on a regular basis on all the partitions to keep on checking the disk partition errors.”

Use Disk Check Feature in GUI Mode

If you don’t want to enter the fuss of black and white screen and juggle with commands, you can also use the same check disk utility using the GUI mode.

Remove Bad Sectors from Hard Disk

Step 1. Open Windows Explorer and click on the drive you want to scan.

Step 2. Right-click on the drive and click on ‘Properties’ at the end of the menu.

Step 3. A new window will open with the properties of the selected drive.

Step 4. Click on the ‘Tools’ tab on the top of the window.

Step 5. Under the ‘Error Checking’ section, click on the ‘Check’ button to check and remove bad sectors from hard disk.

Step 6. It will perform a check on the selected hard drive partition and remove bad sectors from the hard drive. It should restart if there are any severe changes or you must restart the system for changes to take in place.

Remove Bad Sectors Using SFC /SCANNOW Command

While you are comfortable with the command prompt now, you can also make use of one more command to run a scan for corrupt system files and repair them right with a single command.

SFC /SCANNOW is a system file checker tool to check and repair corrupt system files. This command doesn’t require any parameters and can directly scan the hard drive for errors and remove bad sectors. You simply need to enter the command prompt with administrator rights and type in sfc /scannow and hit enter.

If you are using Windows 10, 8.1, or Windows 8 operating system, you will need to follow some additional steps to make the command work. Follow Microsoft Support Article to know more about the steps.

Remove Bad Sectors Using Advanced System Optimizer

If Microsoft utilities disappointed you, you can make use of the best Windows optimization utility, Advanced System Optimizer to remove bad sectors from hard disk.

Remove Bad Sectors from Hard Disk

Advanced System Optimizer is one of the best Windows optimization suites that give you a one-stop solution for overall system cleaning and optimization, Malware protection, updating device drivers and a lot more.

There are several built-in utilities for overall optimization of the system and make your PC as good as new. The application is compatible with Windows 10, 8.1, 8, 7, Vista, and Windows XP (32-bit & 64-bit) operating systems.

Disk Cleaner & Optimizer feature of this utility check the hard drive for errors on every startup to prevent system crashes, runs disk defragmentation to enhance the performance of your hard drive, and cleans junk files, cache, cookies and other malicious files from the system.

System Security & Privacy feature offers the most robust security powered by Norton Symantec. It protects the system from malware, trojan, and other infections and deletes your browsing history, cookies, and confidential data before it’s compromised. It also offers file encryption and military-grade security to save or securely delete any file.

Apart from offering security, it also updates your device drivers with the latest and updated drivers for smooth functionality. Advanced System Optimizer also optimizes your RAM and improves your gaming experience. The backup and recovery function takes a backup before making any changes and can recover the system from unexpected crashes.

Summing Up

It is a wise decision to keep a multi-utility for enhanced PC performance and to deal with such complex issues. You don’t need to remember how to remove bad sectors as this utility will do the job for you. Keep your system as good as new with such smart utilities. Happy Computing!

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