Understanding how to perform a disk check on your computer is crucial in detecting and fixing hard drive issues. By conducting regular scans, you can keep your disk and operating system safe from various errors. 

Key Takeaways

  • Running a disk scan on your computer can keep your data safe from bugs, resolve disk errors, and prevent disk data loss.
  • On Windows, you can perform a disk check using the chkdsk [Disk’s Letter]: /f  command in the Command Prompt. 
  • Mac users can go to Disk Utility and perform a disk check using the First Aid feature. 

What Does It Mean To Perform Disk Check On Your PC?

When you perform a disk check on your computer, the system scans the hard drives for errors, bad sectors, inaccurate data, and other irregularities that may harm its operation. The scan will find and solve problems within the system’s disks or prompt the user to fix them. Therefore, the process helps keep your disk data safe and intact while aiding your computer’s hassle-free functioning.

How To Perform Disk Check?

Each operating system, be it Windows, macOS, or Linux, has its method of carrying out a disk check that you will find in this section.

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There are two ways to execute a disk check in Windows; you can either do it from the Command Prompt or the Disk’s Properties.

Command Prompt

  1. Open the Command Prompt by searching cmd on the Taskbar’s Search Panel.
    How To Perform Disk Check
    Command Prompt – Image Credits [Tech4Gamers]
  2. Enter chkdsk [Disk’s Letter]: /f to scan the disk. For example, if you wish to scan Local Disk D, the code would be chkdsk D: /f.
    How To Perform Disk Check
    Disk Check – Image Credits [Tech4Gamers]
  3. Let the scanning complete.

Disk Properties

  1. Click on This PC from the Desktop.
    how to perform disk check
    This PC – Image Credits [Tech4Gamers]
  2. Right-Click on the Disk you want to scan.
  3. Pick Properties from the mini-menu.
    Properties – Image Credits [Tech4Gamers]
  4. Go to the Tools tab.
  5. Under the Error Checking section, hit the Check button.
    How To Perform Disk Check
    Disk Check – Image Credits [Tech4Gamers]
  6. Select Scan Drive from the dialog box.
    How To Perform Disk Check?
    Scan Drive – Image Credits [Tech4Gamers]
  7. Allow the scanning to finish.


Running a First Aid scan on your macOS PC analyzes its disks for potential errors and mishaps that could be causing different issues on your computer.

  1. Click on the Finder button.
    Finder – Image Credits [Tech4Gamers]
  2. Open Applications.
  3. Select Utilities to expand the options.
  4. Pick Disk Utility.
    Applications – Image Credits [Tech4Gamers]
  5. Highlight the disk you wish to scan from the left panel.
  6. Now, press the First Aid button on the top bar.
    How To Perform Disk Check
    First Aid – Image Credits [Tech4Gamers]
  7. Hit the blue button, Run.
    Run – Image Credits [Tech4Gamers]
  8. Confirm with Continue to begin scanning.
    Continue – Image Credits [Tech4Gamers]
  9. The system will now scan the disk for errors and irregularities.
    How To Perform Disk Check
    Running First Aid – Image Credits [Tech4Gamers]

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Like Windows, you need to enter a certain command code in the Terminal window on your Linux computer to run a disk error check.

  1. Press the Apps symbol on the left bar.
    Apps – Image Credits [Tech4Gamers]
  2. Open Terminal.
    How To Perform Disk Check
    Terminal – Image Credits [Tech4Gamers]
  3. Execute the command, sudo fsck /dev/sdb.
  4. You will see the scan results once the disk check is complete.
    Linux Code
    Linux Code

When Should You Perform Disk Check?

Running a disk scan periodically helps maintain the drive’s health by diagnosing and repairing any potential errors that may be developing. Therefore, we advise scanning your system’s disks at least once a month. On the other hand, you should consider performing a disk check when;

  • Your system crashes or shuts down abruptly.
  • The computer displays signs of instability, and you detect slower operation than usual.
  • You have updated the operating system or installed a new one on your computer.
  • You made changes to the default settings of your PC.
  • You cannot save new files on your disks.

Also Read: Fixed: Unable To Recover Your PC, System Drive Too Small

What Are The Benefits Of Running A Disk Check?

Performing a disk check is a vital maintenance step to keep your disks safe from threats. The troubleshooting method has many benefits for your hard disks; for instance, it identifies and resolves corrupt files, inaccurate cache data, or bad sectors within your disk. As a result, you can eliminate various system or disk errors while improving your PC’s overall stability and performance.

In addition, it can help prevent data loss by identifying disk faults early before they damage your computer or disk. Additionally, running regular disk scans also prolongs the life and health of your hard disks by preventing foreseeable problems. 

Final Words

These are all the methods on how to perform a disk check on your computer, be it Windows or macOS. 

Frequently Asked Questions

When Should I Perform A Disk Check?

Run a disk check if your computer is slowing down, you cannot save new files to your disks, or when you encounter drive or system errors.

How Long Does A Disk Check Take?

A disk scan can take 1 to 6 hours, depending on your disk size and the presence of errors or bad sectors.

What Happens If A Disk Check Is Interrupted?

It is highly advised not to turn off your system during the disk scan; otherwise, the system files can get corrupted, affecting your PC.

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[How To’s & Guides Editor] Haddi has been in the Gaming and tech Space for over 10 Years Now; he has worked on notable websites like eXputer, Gamepur, Gear Siege, Gearnuke, and plenty more. He is an expert at Games & PC Hardware; you can expect him to solve any problem. People often joke, that if there is any problem anyone can solve, Haddi can solve it faster. Currently, Haddi writes and manages a Team of Experts at Tech4Gamers. Contact: [email protected]