Fix Wificx.sys failed Blue Screen on Windows 11

This post features different solutions to fix Wificx.sys failed Blue Screen on Windows 11. It’s a BSOD error that mainly occurs when a driver used by Wi-Fi or Network devices has gone missing, become outdated or has become corrupted. Fortunately, you can follow some methods to eliminate this issue.

What is Wificx.sys driver?

Starting in Windows 11, the Windows Driver Kit (WDK) includes a Wi-Fi WDF class extension (WiFiCx) used in drivers for a Wi-Fi device. WiFiCx drivers are also NetAdapterCx client drivers just like other NIC drivers. WiFiCx drivers run on Windows 11 only.

Why does Wificx.sys failed Blue Screen occurs on Windows 11/10?

Wificx.sys failed BSoD is an uncommon error that appears randomly, making your Windows 11 device shut down or restart automatically. Like any other BSoD error, it can occur due to multiple reasons. However, some of the possible reasons why it may occur are:

• Hardware malfunctioning
• Issues with the Wificx.sys driver
• Overheating Components

Fix Wificx.sys failed Blue Screen on Windows 11/10

Wificx.sys is an architectural component in Windows related directly to program network drivers. As this error can cause frequent crashes within the system, it’s essential to fix it. Go through the suggestions and then decide which one you would like to try first:

1. Run System File Checker
2. Run a DISM Scan
3. Reinstall Wireless and Network Drivers
4. Uninstall Recent Windows Update
5. Reinstall Vanguard Anti-Cheat.

Before you begin, if you noticed that the problem started after you installed a Windows Update or updated or rolled back a device driver, then it might be a good idea to reverse the changes or use a system restore point to go back.

1] Run System File Checker

One of the reasons why a BSOD can occur is corrupted or damaged Windows system files. Running SFC will scan and repair these files instantly. To run the System File Checker, follow these steps:

Click on the Windows key and search for Command Prompt.

Click on Run as Administrator.

Type the following command and hit Enter:

sfc/scannow

Restart your device once done and check if the Wificx.sys failed Blue Screen error is fixed.

2] Run a DISM Scan

System Image Corruptions can also cause Wificx.sys failed Blue Screen on Windows 11/10. Performing a DISM scan will repair image corruptions on your device. Here is how to run DISM:

Click on the Windows key and search for Command Prompt.

Click on Run as Administrator.

Type the following commands one by one and hit Enter:

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

Restart your device once done and check if the Wificx.sys failed Blue Screen error is fixed.

3] Reinstall Wireless and Network Drivers

As we know, Wificx.sys is directly related to network drivers. So the crashes may occur due to some driver-related issues. Reinstalling your Wi-Fi Network Drivers can help fix the error. Here’s how you can do it:

1. Press the Windows key + R to open the Run dialog box.
2. Type devmgmt.msc and hit Enter.
3. Expand Network Adapters, right-click on your Network Adapter and click on Uninstall Device.
4. Once done, restart your PC and the drivers will be installed automatically.

These posts may help you:

• How to install WiFi drivers
• How to update Network drivers

Similarly, you might want to remove and reinstall Wireless drivers and maybe also remove the secondary WiFi adapter and see if that helps you.

4] Uninstall Recent Windows Update

A recently installed Windows update can sometimes cause Wificx.sys failed Blue Screen on Windows. If that’s the issue, uninstalling the recently installed update can help fix the error. Follow these steps to do so:

1. Press the Windows key + R to open the Run dialog box.
2. Type appwiz.cpl and hit Enter.
3. In the Programs & Features Tab, click on View Installed Updates.
4. Now click on the recent update and select Uninstall.
5. Follow the instructions on-screen to complete the process.

Once done, restart your PC and check if the error still occurs.

5] Reinstall Vanguard Anti-Cheat

Some users have reported that Vanguard is responsible for causing the Wificx.sys BSOD error in Windows 11.

We, therefore, suggest that you uninstall Vanguard and then download and install its latest version.

Fix: NDIS.sys failed BSOD error on Windows computer

How do I fix the Blue screen of death on Windows 10 11?

The common troubleshooting steps to fix Blue Screen errors in Windows 11/10 to be followed are:

1. See if a System Restore can resolve this issue.
2. Run Online Blue Screen Troubleshooter
3. Run your anti-virus and anti-spyware and your PC Junk/Registry Cleaner.
4. Run the Windows Check Disk Utility.
5. Check if you’ve made any software or hardware change or modification.
6. In most cases, the software is the victim and not the cause of BSOD’s. So don’t rule out hardware problems. It could be damaged hard disks, defective physical RAM, overheated CPU chips or anything else!

Is Blue screen of death fixable?

Some BSODs are easy to fix using the suggestions made here, while others may require you to debug Blue Screen error logs. In most cases, it is the device driver that causes problems and rolling back or updating the driver can help right away.

Read: DRIVER IRQL NOT LESS OR EQUAL (kbdclass.sys) BSOD error.