How to Fix the netio.sys Blue Screen Error in Windows

The blue screen of death (BSOD) with the netio.sys error is a common issue in Windows devices and is typically related to network drivers or software interacting with the network. In this guide, we’ll explore several proven methods to resolve this error.

1. Update Network Drivers

The first step is to update your network drivers. A corrupted or outdated driver may be the cause of the netio.sys error.

  1. Open Device Manager (press Win + X and select Device Manager).
  2. Find the Network adapters section and expand it.
  3. Right-click on your network adapter and select Update driver.
  4. Follow the instructions to update the driver. If automatic updates fail, visit your network card manufacturer’s website and download the latest driver version.

2. Scan for Viruses

Malware can impact system files, including netio.sys. Run a full scan using Windows Defender or a third-party antivirus program to ensure your system is clean.

3. Disable or Update Third-Party Antivirus

Third-party antivirus programs sometimes cause conflicts with Windows system drivers, which can trigger the blue screen error. Temporarily disable your antivirus and check if the error persists. If it does not, consider updating your antivirus to the latest version or switching to a different program.

4. Run System File Checker (SFC)

The SFC command (System File Checker) will verify the integrity of system files and repair any corrupted files, including netio.sys.

  1. Open Command Prompt as Administrator (press Win + X and select Command Prompt (Admin)).
  2. Type the command: sfc /scannow and press Enter.
  3. Wait for the scan to complete. If errors are found, SFC will attempt to automatically repair them.

5. Check for Windows Updates

Sometimes, the netio.sys error can be resolved through Windows updates, as they may contain crucial fixes for network drivers and system components.

  1. Go to Settings (press Win + I).
  2. Select Update & Security, then click Check for updates.
  3. Install any available updates and restart your computer.

6. Disable QoS Settings on Network Adapter

Occasionally, conflicts can arise with the Quality of Service (QoS) feature on your network card. Try disabling QoS:

  1. Go to Network Connections (press Win + R, type ncpa.cpl, and press Enter).
  2. Right-click on your active connection and select Properties.
  3. Uncheck the box next to QoS Packet Scheduler and click OK.

7. Check the Hard Drive for Errors

The netio.sys error may also stem from hard drive issues. Use the CHKDSK command to check your disk for errors.

  1. Open Command Prompt as Administrator.
  2. Type the command: chkdsk /f /r and press Enter.
  3. The system may prompt you to restart. Agree and restart your computer to allow the disk check to proceed.