How to turn off chkdsk at startup

Written by mike benson
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How to turn off chkdsk at startup
Windows Check Disk scans your hard drive for bad sectors and errors. (Creative Crop/Digital Vision/Getty Images)

The Windows Check Disk utility checks your disk volumes for errors. Generally, Windows runs chkdsk.exe when your hard drive has potential problems. Several events can trigger this program. The most common trigger is when your computer has failed to shut down properly. Windows may also determine that your drive is dirty and schedule Check Disk to run on your next start-up. Occasionally, you can have a problem that causes Check Disk to run on every start-up, even after you have successfully completed a scan. You can disable this program from running on computer start-up.

Skill level:


  1. 1

    Press the "Windows" and "R" keys simultaneously on your keyboard. This opens a "Run" box on the bottom of your screen.

  2. 2

    Type "Regedit" in the "Run" box and click the "OK" button. This launches the Windows Registry Editor.

  3. 3

    Navigate to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager" in the left-hand pane.

  4. 4

    Right-click "BootExecute" in the right-hand pane and click "Modify." Change the value to "autocheck autochk /K:C *" and click the "OK" button. Close the Registry Editor.

  5. 5

    Click "Start," and click "All Programs." Open the "Accessories" folder and right-click "Command Prompt."

  6. 6

    Click "Run as administrator." This opens a Windows Command Prompt with administrative permissions. Type "chkdsk c: /f /x" and press the "Enter" key. Press the "Y" and "Enter" to confirm that you would like to run check disk when your system restarts.

  7. 7

    Restart your computer. Your computer will reboot and perform the check disk operation and then automatically boot back into Windows.

  8. 8

    Press the "Windows" and "R" keys simultaneously. Type "Regedit" in the "Run" box and then press the "Enter" key.

  9. 9

    Navigate back to "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager" in the left pane. Right-click "BootExecute" in the right pane and click "Modify."

  10. 10

    Change the value from "autocheck autochk /K:C " to "autocheck autochk " and click "OK." Restart your computer. Chkdsk.exe will not run on start-up until another problem on your drive occurs.

Tips and warnings

  • To permanently disable Chkdsk, leave "autocheck autochk /K:C *" in the "BootExecute" value box.

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