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How to Fix Windows System Error Code ERROR_215: Step-by-Step Guide


If you’ve encountered Windows System Error Code ERROR_215, you’re not alone. This error can be frustrating as it often disrupts your workflow or prevents certain applications from running smoothly. The good news is that with a little patience and some guided steps, you can resolve this issue and get your system back on track.

In this detailed guide, we’ll walk you through everything you need to know about ERROR_215, including what it is, common causes, and most importantly, how to fix it step-by-step.


What is Windows System Error Code ERROR_215?

ERROR_215 (decimal 215, hex 0xD7) is a system error code that typically indicates an “Invalid function” or a related problem when the system is trying to execute a task or run an application. This error often appears when there’s a compatibility issue, corrupted system files, or conflicts with device drivers.

Understanding this error helps you troubleshoot effectively.


Common Causes of ERROR_215

  1. Corrupted or Missing System Files
  2. Driver conflicts or outdated device drivers
  3. Incorrect system settings or registry issues
  4. Malware or virus infections affecting system stability
  5. Software incompatibility or improper installation


How to Fix Windows System Error Code ERROR_215: Step-by-Step Guide

Step 1: Restart Your Computer

It might sound obvious, but sometimes a quick restart resolves temporary glitches causing ERROR_215. Save your work and do a full system reboot first.


Step 2: Run the System File Checker (SFC) Tool

Corrupted or missing system files are a common cause of this error. Windows has a built-in tool called System File Checker that scans and repairs damaged files.

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

    sfc /scannow

  4. Hit Enter and wait for the process to complete (can take 10-15 minutes).
  5. Restart your computer after the scan finishes.


Step 3: Update Device Drivers

Outdated or incompatible drivers, especially for your hardware components, can trigger ERROR_215.

  1. Press Windows key + X and select Device Manager.
  2. Look through critical categories like Display Adapters, Network Adapters, and Sound, Video and Game Controllers.
  3. Right-click each device and choose Update driver.
  4. Select Search automatically for updated driver software.
  5. If updates are found, install and reboot your system.


Step 4: Check for Windows Updates

Microsoft regularly releases patches to fix bugs and improve system stability.

  1. Press Windows key + I to open Settings.
  2. Click Update & Security.
  3. Under Windows Update, click Check for updates.
  4. Install all available updates, then restart your PC.


Step 5: Run a Full System Malware Scan

Malware infections often cause unpredictable system errors.

  1. Open Windows Security by searching it in the Start menu.
  2. Click Virus & threat protection.
  3. Select Scan options and choose Full scan.
  4. Run the scan and remove any detected threats.
  5. Restart your system.


Step 6: Perform a Clean Boot

Sometimes third-party software conflicts cause ERROR_215. Performing a clean boot helps isolate the issue.

  1. Press Windows key + R, type:

    msconfig

  2. Click OK.
  3. In the System Configuration window, go to the Services tab.
  4. Check Hide all Microsoft services, then click Disable all.
  5. Switch to the Startup tab and click Open Task Manager.
  6. Disable all startup items.
  7. Close Task Manager and click OK on System Configuration.
  8. Restart your PC and see if the error persists.

If the error disappears, gradually re-enable services/startups to find the culprit.


Step 7: Use System Restore to Roll Back Changes

If ERROR_215 started recently, a system restore to a previous stable point might help.

  1. Press Windows key + S and type Create a restore point.
  2. Click the result to open System Properties.
  3. Click System Restore.
  4. Choose a restore point from before the error began.
  5. Follow prompts to revert system settings without affecting files.


Step 8: Repair Windows Using DISM Tool

The Deployment Image Servicing and Management (DISM) tool repairs the Windows image.

  1. Open Command Prompt as administrator (as in Step 2).
  2. Type the following commands one by one, pressing Enter after each:

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

  3. Wait patiently, as it may take some time to complete.
  4. Restart your computer.


Step 9: Contact Microsoft Support or a Professional Technician

If none of these steps work, it might be time to seek expert help. Technical support can analyze logs and perform advanced troubleshooting.


Final Thoughts

Encountering ERROR_215 can throw a wrench in your day, but armed with this step-by-step guide, you can approach the problem confidently. From system file checks to driver updates and malware scans, these actions cover the most common causes and solutions.

Remember, routine maintenance—keeping your system updated, scanning for malware, and backing up important data—can prevent many such errors from surfacing.

Have you faced ERROR_215 before? Share your experience and tips in the comments below! Your insights might help others troubleshoot faster.


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Thank you for reading, and happy troubleshooting!

Updated on June 21, 2025
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