How to fix
Mtkwl6ex.sys Blue Screen
on Windows

Help me! I get the constant blue screen of death errors with the system thread exception not handled message and it is related to mtkwl6ex.sys. It can be major, I googled, so I need some help here because I cannot do things properly myself, I think. Can you guide me through it?

The general Blue Screen of Death error[ref en-1] is an unpleasant thing that really creates issues and annoyance for users. The blue screen and a system shutdown are introduced when there are issues with the machine that potentially can lead to serious problems with the device if the system crashes to avoid permanent damage. This is when you see the mtkwl6ex.sys Blue Screen, for example.

In many cases, these blue screens scare people into thinking that the machine is done and damaged permanently, but that is not really true. The incident can list the particular issue and error code, so you could be informed of what caused this issue, but not so tech-savvy people cannot be sure that the error was informative enough. 

The particular mtkwl6ex.sys Blue Screen in Windows is appearing on various Windows 10 and 11 devices, and users report them online.[ref en-2] The issue is related to MediaTek WiFi device driver issues. Driver malfunction can cause this issue, and corrupted or outdated, incompatible drivers are the most common reasons for this.

The machine can work properly after the error, but some of the issues that cause the blue screen error need to be addressed as soon as possible until those reasons are behind the mtkwl6ex.sys Blue Screen Error in Windows leads to consequences resulting in total machine failure.

Commonly these incidents can be fixed by upgrading the particular driver that is causing the error. The file indicated on the message is the file that needs to be replaced, repaired, or fixed otherwise because the issue is in the driver malfunction. That can happen when some cyber infections[ref en-3] alter those settings and files or when the upgrade of the OS is not properly installed.

It is possible to solve the issue with tools like [d1] that can address those malware leftovers and corrupted system files. If that is not the way to solve the issue on your machine, you might want to rely on more manual solutions listed below. Do not hesitate and make sure to fix mtkwl6ex.sys Blue Screen in Windows right away so you can solve the problem and forget about those scary blue screens.

Fix 1. Update the WiFi device driver

• Press Windows + R keys to launch a Run dialog box. 
• Type devmgmt.msc in the text field of the dialogue box and hit Enter.
  

  

• Locate and right-click on the MediaTek WiFi Device Driver. 
• Select Update Driver from the context menu displayed.
  

  

• Once done, restart your PC.

Fix 2. Rollback network driver

• Open Device Manager.
• Expand Network adapters.
• Right-click on your WiFi driver and select Properties.
• Click on Driver.
• Choose Roll Back Driver.
  

  

  
  

Fix 3. Use System Restore

• Type in Create a Restore Point in the search bar and hit Enter.
• Click System Restore.
  

  

  
  
• Pick Choose a different restore point and click Next
• Mark the Show more restore points checkbox.
  

  

• Choose a time before the crashes.
• Click Next and reboot the system as required.

Fix 4. Check for file damage

• Type in cmd in Windows search.
  

  

• Right-click on Command Prompt result and select Run as administrator.
• Type sfc /scannow and press Enter.
  

  

  
  
• Wait till the scan is finished.