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How to Fix Windows System Error Code ERROR_237: Step-by-Step Guide


Encountering Windows System Error Code ERROR_237 can be frustrating, especially if you don’t know what it means or how to resolve it. This error typically occurs when the system gets stuck with overlapping I/O operations or there is a problem with the underlying system files. Don’t worry! In this guide, I will walk you through detailed, easy-to-understand steps to fix this error and get your Windows system back up and running smoothly.


What is Windows System Error Code ERROR_237?

Before diving into solutions, let’s understand what ERROR_237 stands for. The official description for ERROR_237 is:

"The volume for a file has been externally altered so that the opened file is no longer valid."

This usually indicates that a file system error or disk corruption has occurred, or a third-party application interrupted file operations. It can also stem from outdated drivers or system files causing conflicts.


Step-by-Step Guide to Fix Windows System Error Code ERROR_237

Step 1: Restart Your Computer

Sometimes what feels like a big problem can be solved by simply rebooting your PC. Restarting clears temporary glitches and can resolve minor file system oddities.

  • Save all your work.
  • Click Start > Power > Restart.
  • Check if the error persists after restart.

If restarting doesn’t fix it, move on to the next steps.


Step 2: Run System File Checker (SFC) and DISM Tool

Corrupted or missing system files can trigger ERROR_237. Use Windows built-in tools to scan and repair these files.

Run System File Checker (SFC)

  1. Press Windows key + S, type cmd.
  2. Right-click Command Prompt and select Run as administrator.
  3. In the Command Prompt window, type:

    sfc /scannow

  4. Press Enter.
  5. Wait patiently while Windows scans and repairs any corrupted system files.
  6. When done, restart your computer.

Run Deployment Image Servicing and Management (DISM)

If SFC doesn’t fix the issue, use DISM to repair the system image:

  1. Open Command Prompt as administrator (same steps as above).
  2. Type the following commands one at a time, pressing Enter after each:

    DISM /Online /Cleanup-Image /ScanHealth
    DISM /Online /Cleanup-Image /RestoreHealth

  3. After completion, restart your PC and check for the error.


Step 3: Check Disk for Errors Using CHKDSK

Disk errors or bad sectors on your hard drive can cause files to become invalid.

  1. Open Command Prompt as administrator.
  2. Type the following command and hit Enter:

    chkdsk C: /f /r /x

    • Replace C: with the drive letter where Windows is installed if different.
    • /f fixes errors on the disk.
    • /r locates bad sectors and recovers information.
    • /x forces the volume to dismount before scanning.

  3. You will likely be asked to schedule the scan on the next system restart. Type Y and press Enter.
  4. Restart your computer to allow CHKDSK to scan and fix disk errors.


Step 4: Update or Roll Back Device Drivers

Outdated or corrupted device drivers, especially for storage controllers, can contribute to ERROR_237.

Update Drivers:

  1. Press Windows key + X, choose Device Manager.
  2. Expand Disk drives and IDE ATA/ATAPI controllers.
  3. Right-click your drive/controller and select Update driver.
  4. Choose Search automatically for updated driver software.
  5. If new drivers are found, install them and restart your PC.

Roll Back Drivers (if problem started recently):

  1. In Device Manager, right-click the device and select Properties.
  2. Go to the Driver tab and click Roll Back Driver if available.


Step 5: Run a Clean Boot to Identify Interference from Third-Party Software

Another reason ERROR_237 may occur is due to conflicting third-party programs.

  1. Press Windows key + R, type msconfig, and hit Enter.
  2. Go to the Services tab.
  3. Check Hide all Microsoft services, then click Disable all.
  4. Go to the Startup tab and open Task Manager.
  5. Disable all startup items.
  6. Close Task Manager and click OK in the System Configuration window.
  7. Restart your computer.

If the error disappears, enable services/startup programs one-by-one to isolate the culprit.


Step 6: Perform a System Restore

If the error started recently, you can restore your system to an earlier point where everything was working fine.

  1. Press Windows key + S, type restore.
  2. Click Create a restore point.
  3. Click System Restore.
  4. Follow the prompts to pick a restore point dated before the error occurred.
  5. Complete the restore process and restart your system.


Step 7: Contact Support or Consider a Repair Install

If none of the above steps work, the issue might be more complex at the hardware or system level.

  • Contact Microsoft Support or your PC manufacturer for professional help.
  • Consider a repair install of Windows, which reinstalls the OS without deleting your files or applications.


Final Thoughts

Windows System Error Code ERROR_237 can feel intimidating, but with this detailed guide, you can confidently troubleshoot and fix the problem step-by-step. Remember to always back up your important data before attempting system repairs, and take your time following each step carefully.

If this guide helped you, share it with friends or on social media to help others facing the same issue. Happy computing!


Keywords: Windows ERROR_237, fix error 237, Windows file system error, Windows system error code, CHKDSK fix, SFC scan, DISM restore, update drivers, system restore Windows


If you have questions or need further assistance, feel free to ask!

Updated on June 21, 2025
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