ChkDsk or Check Disk runs on each Windows startup 10/8/7/7

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The Check Disk Utility or Chkdsk.exe utility on Windows 10/8/7 and Windows Vista.exe. Check Disk can be run automatically during a crash or when the file system is detected as’dirty’. There may be times when you notice that this disk utility runs automatically each time Windows starts. You may have scheduled the execution or your Windows has decided to execute it. But instead of running only once, it continues each time your Windows computer starts.

Check Disk runs automatically at each boot

February 2021 Update:

We now recommend using this tool for your error. Additionally, this tool fixes common computer errors, protects you against file loss, malware, hardware failures and optimizes your PC for maximum performance. You can fix your PC problems quickly and prevent others from happening with this software:

  • Step 1 : Download PC Repair & Optimizer Tool (Windows 10, 8, 7, XP, Vista – Microsoft Gold Certified).
  • Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems.
  • Step 3 : Click “Repair All” to fix all issues.


Tool in Windows runs at each boot, here are some things you might want to try.


2 Open the registry editor and navigate to the next registry key :

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlControlSession Manager

In the right area you see BootExecute. Change the value from * /. to *

If it works well for you, try this :

Open a command prompt, type the following and press Enter:

 Dirty query g:

This command will scan the drive, and it is more than likely that it will tell you it is dirty.

Then enter CHKNTFS /X G:. The X will ask Windows NOT to check this particular drive (G) the next time it is restarted. At this point, you should restart your computer manually and drive Chkdsk directly to Windows instead of starting it.

Once Windows is fully loaded, invoke another prompt and type Chkdsk /f /r /r g:. This should guide you through the five phases of the analysis and allow you to recover the dirty part. Finally, type dirty query g: and press Enter. Windows confirms that the dirty bit on this drive is not set.

You can run the command /r or the command /f to check for errors on a hard disk. But if the command /r and the command /f take a lot of time on a Windows computer, see KB943974

Hopefully it will help!

Related topics:

  1. How to reduce the ChkDsk countdown
  2. How to cancel a planned Chkdsk operation
  3. The control disk is not executed at startup under Windows
  4. ChkDsk jams or hangs

RECOMMENDED: Click here to troubleshoot Windows errors and optimize system performance

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