How to Fix “Netio.sys” Blue Screen Errors on Windows 10

Many ways lead your Windows 10 system to a BSOD error, one of which is the NETIO.SYS error, which is quite common. In this article, we’ll be looking at this error in more detail, its causes, and most importantly how you can fix it.

Netio Sys error

What is “NETIO.SYS”?

The NETIO.SYS error is a BSoD (Blue Screen of Death) type of error. It appears with several different error messages appearing on a blue screen, causing your system to crash and reboot. Here are some of the messages (also known as stop codes) you can get when dealing with a NETIO.SYS error:


You can see these error codes at the bottom of your screen when the blue screen error occurs. If you’re able to identify any of them, you’re in the right place to find a solution.

What is a “blue screen” error?

When your system suffers a fatal error, you get a “blue screen” error. Nicknamed the Blue Screen of Death by Microsoft Windows users, it’s a common issue that immediately stops your system, and forces it to reboot. It’s without a doubt an unpredictable error, but that doesn’t mean there’s nothing you can do to ensure it doesn’t happen twice for the same reason.

Most blue screen errors are associated with system-related issues that cause Windows to receive a “STOP” error, leading to a system crash. This happens without further warnings, meaning that work can be lost, and files can occasionally get corrupted. Make sure to save frequently!

 blue screen of death error

The old version of Blue Screen of Death, from NeoSmart Knowledgebase

In older versions of Windows, the BSoD appeared rather unfriendly, with a bunch of text and technical information littering the screen. This has been changed in recent versions to a more comprehensible error screen, making it simpler to see what error you ran into.

What causes the “NETIO.SYS” error?

As for nearly every blue screen type error, there can be many causes for NETIO.SYS as well. We recommend taking a look at all possible solutions and starting with the one you suspect caused your issue. For example, NETIO.SYS is most commonly associated with network drivers — if you know yours was neglected, start with a fix related to your network driver.

Other causes can be something as simple as corrupted software, or complicated things like a poorly configured system. Regardless of what your issue might originate from, you’re most likely going to find the fix here.

How to fix “NETIO.SYS”

As mentioned above, there are many causes for this error, which naturally means there can be many possible solutions. On this page, you can find every way to get rid of the “NETIO.SYS” blue screen error, and general troubleshooting tips to ensure it never comes back again.

Method 1: Disable your antivirus software

While antivirus apps are a must-have on any computer, they may be causing complications resulting in a NETIO.SYS crash. This is because of conflicts between your system and the software. The most popular offenders of this are McAfee, Malwarebytes, AVG, and Zone Alarm. 

If you suspect that your antivirus has something to do with the blue screen error you’re getting, we suggest temporarily disabling it. This can be done by uninstalling the application:

  1. Open the Start menu by clicking on the Windows icon in the bottom left corner of your screen.
    Windows icon
  2. Click on Settings from the left side of the pop-up menu. It’s indicated with a gear icon.
    windows settings
  3. You’ll see a new window displaying many system options. Click on Apps.
    Windows apps
  4. Stay on the default page, and wait for your applications to load. This may take some time depending on the number of applications you have installed on your device.
  5. Use the Search function to look for your antivirus app.
    Search function
  6. Click on your antivirus app and choose Uninstall.
    unintsall antivirus
  7. Follow the on-screen instructions, then restart your computer once the uninstallation finishes.

After you’ve uninstalled your antivirus application, try using your computer regularly to see if the NETIO.SYS error makes a reappearance.

One thing to note for McAfee users: if your system came with McAfee pre-installed, you might have some leftover files even after uninstalling the app. Look for these files and manually delete them. This could potentially resolve your issues with the BSOD.

Tip: Make sure to enable Windows Defender while you don’t have a third-party antivirus application running on your system. It’s a native solution for protection against malware, which doesn’t clash with your system but provides essential protection.

Method 2: Update network drivers

As mentioned above, a NETIO.SYS blue screen error often comes from issues with your network adapters and drivers. Network drivers and adapters take care of connecting your device to the internet, so it’s important to keep them in good shape — without them, you wouldn’t be reading this right now.

Since you can’t just uninstall a network driver and go on without one, the quickest way of fixing this is by giving your drivers an update. Here are two ways to update your drivers automatically, without having to browse the internet for an install file. If all else fails, follow the last option, which is updating your drivers manually.

Update via Windows Update

In recent versions of Windows 10, the capabilities of Windows Update have been expanded. Now, you’re able to update your drivers as well, rather than only having the option to update your operating system itself. Let’s take a look at how you can use Windows Update for updating your network drivers:


  1. Click on the Search icon on your taskbar, located next to the Windows icon. The function is indicated by a magnifying glass.
    Search icon
  2. Type in “Windows Update” and click on Windows Update Settings. This will launch the Settings app right at the page you need.
    Windows Update Settings
  3. Click on the Check for updates button at the top of the page.
    Check for updates
  4. If there are any available updates, Windows will automatically find and install them for you. If you don’t find any, we recommend following the Device Manager method below and manually attempting a driver update.

Update via the Device Manager

The Device Manager is a vital part of Windows. It allows you to see all of your connected devices, their drivers, and manage them with ease. In earlier releases of Windows, it was accessible from the Control Panel, which was replaced by Settings in Windows 10. However, it’s not gone.

Here’s how to access the Control Panel and update your network driver through it:

  1. Click on the Search icon in your taskbar, located next to the Windows icon. The function is indicated by a magnifying glass.
    search icon
  2. Type in “Control Panel” and click on the matching result. Alternatively, you can type in “Device Manager” and go straight there.
    control panel
  3. In the Control Panel, change your view mode to Large icons. This will display everything without having to navigate through an added layer of sub-menus.
    large icons
  4. Click on Device Manager to launch it in a new window.
    Device Manager
  5. Click the arrow icon next to Network adapters to expand it. Right-click on your adapter and choose Update driver.
    Network adapters
  6. Select “Search automatically for updated driver software” and follow the on-screen instructions to update your drivers.
    Search automatically
  7. After a successful update, restart your computer and see if the NETIO.SYS error still occurs.

Update manually

Neither Windows Update nor the Device Manager is perfect, which often results in them being unable to find an updated version of your network driver. It’s recommended to check the manufacturer’s website for good measure.

If you own a portable device such as a laptop, go to your manufacturer’s website and search for your computer’s name. Simply download and install the recommended network drivers. People with PCs can do the same by going to the manufacturer's website of your network card.

Tip: Make sure to download the driver first, then uninstall the existing driver via the Device Manager (instructions above, just choose to uninstall instead of updating). If you uninstall your driver first, there’s a possibility you won’t have access to the internet to download a new driver.

Method 3: Modify your Torrent software

Torrent applications remain popular amongst people looking for a solution to large downloads without the risk of losing progress. However, these apps can cause system crashes as they conflict with your NETIO.SYS file due to network threshold configurations.

If you use BitTorrent as your torrent client, there’s an easy solution:

  1. Launch BitTorrent.
  2. Click on Options from the top menu, then choose Preferences. You can also launch this by using the Ctrl+P keyboard shortcut while in BitTorrent.
  3. Click the plus symbol next to Advanced to expand the category, then select Disk Cache from the list.
    expand the category
  4. Uncheck both Enable caching of disk reads, and Enable caching of disk writes.
    Enable caching of disk reads
  5.  Click the OK button and restart BitTorrent for the changes to take place.

Tip: If you’re having NETIO.SYS errors while running a different torrent application, we recommend switching to BitTorrent and taking the next steps to ensure the problem doesn’t reoccur again.

Method 4: Run the System File Checker

Something you can do for any regular troubleshooting is running the system file checker that comes with Windows itself. It’s a handy little tool that runs a scan on your entire system, looking for all sorts of issues.

Many people report that the System File Checker scan was able to identify issues related to the NETIO.SYS blue screen error. Here’s how you can run the scan on Windows 10:

  1. Click on the Search icon in your taskbar, located next to the Windows icon. The function is indicated by a magnifying glass.
    search ico
  2. Type in Command Prompt.
    command prompt
  3. Right-click on the matching result and choose Run as administrator.
    Run as administrator
  4. Once the command prompt launches, type in the following line and hit enter:
    SFC /scannow
  5. The file checker will begin scanning your system and alerting you about any issues. You can fix these issues by following the on-screen instructions.

Method 5: Undo recent changes

It’s possible that the NETIO.SYS error on your device is caused by software you recently installed or updated, settings you changed, or features you just turned on. In this case, the recommended solution is to undo these changes and uninstall recent apps.

However, you might not remember the changes you made, which is when a feature like System Restore comes in handy. If you have any restore points set up from before the blue screen error started happening, you’re able to return to it and stop the error from coming back.

Here’s how you can return to a System Restore point in Windows 10:

  1. Click on the Search icon in your taskbar, located next to the Windows icon. The function is indicated by a magnifying glass.
    search icon
  2. Type in Recovery and click on the matching result from the Control Panel.
  3. Click on the Open system restore link.
    system restore
  4. Follow the on-screen instructions to restore an earlier state of your system.

We hope that these tips were able to help you get rid of the NETIO.SYS blue screen error on Windows 10. If you have any more questions, issues, or troubleshooting to do, feel free to return to us! Our dedicated Windows 10 section is filled to the brim with useful articles. We address errors, bugs, and supply you with general information about Windows 10.

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