March 2021: List of data breaches & attacks

NDIS or Network Driver Interface Specification is a programming interface for the network interface cards that aids in the proper functioning of a system driver in a computer network. The NDIS helps the computer system in order to communicate with other connected devices and hardware components on a computer network. In relation, the ndis.sys file is a critical system file developed by Microsoft for the Windows operating system. As you know, sys files or system files are important parts of the Windows operating system as well as a repository of system driver settings used by Windows to communicate with the connected hardware and devices. The ndis.sys files are stored mostly in a driver folder at C:/Windows/System32/drivers and as mentioned, these files are essential for the system to function properly. Although the presence of ndis.sys system file is not yet known to affect the normal functioning of the Windows OS, some of the Windows 10 users reported that they encountered ndis.sys blue screen errors on their PCs. Blue Screen of Death errors or Stop errors usually occurs when you open a program or a function. Moreover, it could also occur when the driver gets loaded during the system startup or during system shutdown. It isn’t yet clear what really causes the ndis.sys blue screen error. However, like other Stop errors, it may occur due to corrupted files, misconfigured device drivers, bad drivers, corrupted Windows Registry, missing or damaged system files, and malicious programs. Aside from the aforementioned reasons, the ndis.sys blue screen error might also occur if your hard disk is damaged and if the RAM is corrupted. In such cases, a lot of users usually disable the ndis.sys file. However, it won’t really resolve the issue since the file is required for the normal functioning of the operating system and even when you disable the file, it’s pretty useless as the file will start all over again. In addition, you might want to disable security programs or firewalls and antivirus programs in the meantime to check if these programs are the ones that are causing the error. And if you’ve determined that none of the security programs or firewalls and antivirus programs are to blame, refer to the options below that might help you resolve the DRIVER_IRQL_NOT_LESS_OR_EQUAL or ndis.sys Blue Screen of Death error.

Option 1 – Try to update or reinstall the PC device driver

The Ndis.sys Blue screen error can occur when the device driver in your computer is outdated or corrupted. Thus, you either have to update or reinstall it to fix the issue.

• Tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. If you see a red or yellow sign that shows up against the driver, right-click on the driver’s name and select “Update Driver Software” or “Uninstall”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• Restart your PC.

Option 2 – Rollback your Network drivers

If you have updated the driver software as of late and you suddenly got this BSOD error, you might have to roll back the device driver – in other words, switch back to the previous working version. To do that, follow these steps:

• Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
• Next, select the driver entries that are labeled appropriately other than anything in the context of the WAN Miniport.
• Then select each one of them and double-click to open a new mini window.
• After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of your Network adapters.
• Now restart your computer to successfully apply the changes made.

Option 3 – Try running the System File Checker

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the ndis.sys Blue Screen of Death error. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow and hit Enter.

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

Option 4 – Try running the CHKDSK utility

Running the CHKDSK utility might also help you resolve the Netwtw04.sys failed BSOD error. If your hard drive has issues with integrity, the update will really fail as the system will think that it’s not healthy and that’s where the CHKDSK utility comes in. The CHKDSK utility repairs hard drive errors that might be causing the problem.

• Open Command Prompt with admin privileges.
• After opening Command Prompt, execute the following command and hit Enter:

chkdsk /f /r

• Wait for the process to be completed and then restart your computer.

Option 5 – Run the DISM Tool

The DISM tool is another command-line tool in the Windows operating system that could help users fix various corrupted system files. To use it, follow these steps:

• Open the Command Prompt as admin.
• Then type in this command: DISM /Online /Cleanup-Image /RestoreHealth
• The DISM command you entered will repair the corrupted system image. Do not close the window if the process takes a while as it will probably take a few minutes to finish.
• Restart your PC.

Option 6 – Perform a System Restore

Performing a System Restore on your computer can also help you fix the ndis.sys Blue Screen of Death error. You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

Windows 11 has been officially presented during Microsoft’s virtual event on June 24^th. Since presentation internet has been pretty live and busy with a discussion about it, some discussions are positive, some not so much but that is expected and it happens always when a new product is presented. One of information that we have about Windows 11 is tied to the home edition of this OS, Windows 11 home edition will require an internet connection at setup, and a Microsoft account in order to be installed and used. Previous versions of Windows could be installed and used with local accounts but it seems Microsoft has abandoned that idea for its new OS. OS will be delivered mostly as updates or via internet download so internet and online requirement make sense but why it cannot use the local account and must have a Microsoft one is beyond me.

A general rule of thumb, which is followed by most users, is to download the specific missing DLL file and place it within the software’s installation directory. However, this can be harmful to your system as hackers often upload popular malicious DLL files to target systems. Thus, you should avoid downloading DLLs from the internet. And follow these steps to fix the DLL error:

• Restart your computer
• System restore to an earlier state
• Run a malware/virus scan
• Update all the hardware drivers
• Running SFC /scannow command in command prompt
• Then do as the error suggests, reinstall the program if it’s feasible. Game files can take several hours to install and therefore, reinstallation can be a cumbersome job. Also, frustrating if the error appears after reinstallation.
• Update device drivers manually, such as graphics drivers, DirectX software if you see DLL missing error while running game

One of the common causes of Blue Screen of Death or BSOD errors is system driver files due to varying reasons. So if you encounter a Stop error caused by some system driver files such as isapnp.sys, gv3.sys, storahci.sys, or myfault.sys, on your Windows 10 PC, then this post should help you fix the problem. These system driver files are associated with different error codes. The isapnp.sys file is related to the following error codes:

• SYSTEM SERVICE EXCEPTION
• PAGE FAULT IN A NONPAGED AREA
• KERNEL DATA INPAGE
• SYSTEM THREAD EXCEPTION NOT HANDLED
• IRQL NOT LESS EQUAL
• KMODE EXCEPTION NOT HANDLED.

While the gv3.sys file is related to the following BSOD error codes:

• IRQL NOT LESS EQUAL
• KMODE EXCEPTION NOT HANDLED
• PAGE FAULT IN NONPAGED AREA.

On the other hand, the storahci.sys file is related to these error codes:

• IRQL NOT LESS EQUAL
• KMODE EXCEPTION NOT HANDLED
• PAGE FAULT IN NONPAGED AREA.

And the myfault.sys file is associated with this error code: SYSTEM SERVICE EXCEPTION. Although this system driver file causes different kinds of Blue Screen errors, some of their potential fixes are quite the same so you need not carry out tons of troubleshooting steps. But before you troubleshoot the problem, you might want to check out System Restore first, especially if you create a System Restore point from time to time. To perform System Restore, follow these steps:

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

If System Restore didn’t help in fixing the Blue Screen error, now’s the time for you to resort to the troubleshooting tips provided below but before you get started, make sure that you create a System Restore point first and boot your computer into Safe Mode.

Option 1 – Use the System Configuration utility

Note that this first fix is only applicable for Blue Screen errors associated with the myfault.sys file.

• In the Cortana Search box, type “MSConfig” and click on the “System Configuration” entry to open it.
• After opening System Configuration, go to the Processes tab.
• Then scroll down and look for the “Digital Line Detection” process and disable it.
• Now restart your computer and check if the Stop error is fixed or not.

Option 2 – Try to update, rollback or disable related device drivers

Incompatible and outdated drivers can also cause computer malfunctioning or crashing as well as Blue Screen errors. To fix that, you can update, roll back or disable the device drivers in your computer.

• Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
• After opening the Device Manager, from the list of device drivers, look for the “WIN ISA Bus Driver” if you are facing a Stop error related to the isapnp.sys file. While you have to look for the Sony Recovery CDs PCG-Z1RAP Series device drivers if you face a Stop error concerning the gv3.sys file. For the storahci.sys, on the other hand, look for any outdated drivers and update them.
• To update or roll back or disable these drivers, just right-click on each one of them, and depending on your preference, you can either select “Update driver”, “Disable device” or “Uninstall device”.
• After that, restart your PC and see if it helped in fixing the Blue Screen error.

Option 3 – Use System File Checker

One of the built-in tools in Windows that you can use to fix Blue Screen errors is the System File Checker. This built-in command utility can help you restore corrupted or missing files as well as replace bad and corrupted system files. Chances are, any of the aforementioned system driver files might be corrupted so to fix them, use System File Checker.

• First, right-click on the Start button and click on the “Command Prompt (Admin) option.
• Next, type in the sfc /scannow command and hit Enter to execute it.

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Now restart your computer.

Option 4 – Run the Blue Screen Troubleshooter

Troubleshooting Blue Screen of Death errors wouldn’t be complete without the Blue Screen troubleshooter. As you know, it is a built-in tool in Windows 10 that helps users in fixing BSOD errors. You can find it in Settings, under the Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options.
• Note that you might have to boot your PC into Safe Mode.

When you get an igfxem.exe error in Windows, it is not really clear what does this means, usually, Windows throw us some code or we get a DLL error, rarely we get an EXE error. So what does this error means? Intel Graphics Executable Main Module, shortly called as IgfxEM module is a part of the Windows operating system. When you run Microsoft .NET Framework applications that use the AS/400 Data Queue ActiveX control (Mseigdq.dll) to read from and to write to IBM iSeries (AS/400) data queues, you may experience this error. In order to overcome this error and cope with it try the following things:

1. Increase Virtual Memory

   Go to the Start Menu and click on Settings. Type performance. Choose Adjust the appearance and performance of Windows. In the new window, go to the Advanced tab and under the Virtual memory section, click on Change. At the bottom of the new window, check what the Recommended value is and how it compares to Currently allocated. If the current setting is significantly less than the recommended, uncheck the Automatically manage paging file size for all drives box at the top of the same windows and then click on Custom size. Enter the Recommended value in the Initial Size box, and a larger figure in the Maximum size box. Click OK to save the new settings.

2. Download and update .NET framework

   Go to the Microsoft website and download the latest .NET framework. Once the download is complete, install the package following onscreen instructions.

3. Reinstall INTEL graphic drivers

   Go to the intel website and download the latest graphic drivers for your graphic card model. Once the download is complete, install the package following onscreen instructions.

4. Run SCF scan

   If all else fails, run command prompt and inside type sfc /scannow

If there are any third-party add-ons or proxy settings that interfere with your Windows 10 computer’s internet connection, then you will most likely encounter a problem where you see an error message saying, “Website is online but isn’t responding to connection attempts” when you try to run the Network Adapter troubleshooter. Like pointed out, this kind of error can be caused by some proxy settings that prevent the connection. On the other hand, it could also be caused by some third-party add-ons. To fix this error, read on as this post will guide you on what you can do to fix it. You can try to turn off the proxy settings or disable the add-ons on your browser. You can also try resetting both the TCP/IP and DNS as well as reset the network. For more details, refer to the options provided below.

Option 1 – Try to turn off the proxy settings

There are some users who reported that they’ve fixed the problem after they’ve disabled the use of a proxy server using the built-in way. Follow the steps below to disable the proxy server.

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 2 – Try disabling the add-ons or browser extensions

The next thing you can do to fix the problem is to disable any extensions or add-ons on your browser. For instance, if you are using Chrome, here’s what you have to do:

• Open Chrome and press Alt + F keys.
• Go to More tools and click Extensions to look for any suspicious browser extensions or toolbars.
• Click the Recycle bin and select Remove.
• Restart Chrome and press Alt + F keys again.
• Proceed to On Startup and mark Open a specific page or set of pages.
• To check if the browser hijacker is still active, click Set pages, if it is active, overwrite the URL.

Option 3 – Try to update the Network Adapter Driver

Follow the steps below to update your Network Adapter Driver:

• Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
• From there, expand the list of all the network drives and update each one of them.

Note: If updating the network drivers didn’t help in fixing the problem, you can also try to uninstall the very same drivers and restart your Windows 10 PC. After that, the system itself will reinstall the drivers you just uninstalled. Alternatively, you can also download and install the drivers from the manufacturer’s website directly.

Option 4 – Try to reset the TCP/IP and the DNS cache

As you know, the TCP/IP or the Internet Protocol is the most important thing if you want to use the internet on your computer. That’s why if it ends up getting corrupted, you need to reset the TCP/IP to fix the problem. To reset TCP/IP, refer to these steps:

• In the Windows start to search, type “command prompt” and right-click on Command Prompt from the search results.
• Then select the “Run as administrator” option to open Command Prompt with admin privileges.
• After that, execute this command: netsh int ip reset resettcpip.txt
• Next, execute this second command: ipconfig /flushdns
• Once it’s done, exit Command Prompt and restart your computer and then check if the error is now fixed.

Option 5 – Try to reset the Network

You can also try to perform a Network Reset to resolve the problem. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.

Error Code 0xc004f210 – What is it?

Error code 0xc004f210 is one of the many activation errors that affect Windows 10 users. Users will be able to identify error code 0xc004f210 because of the following common symptoms which occur:

• Inability to activate Windows 10 operating system
• Message box with error code 0xc004f210

Solution

Error Causes

Error code 0xc004f210 usually occurs due to issues related to one’s product key or digital entitlement. Both the product key and digital entitlement are used by Microsoft to enable customers to activate the version of Microsoft that they have legitimate access to. If you enter the wrong product key or if you upgrade to Windows 10 but the current version of Windows to which you are attempting an activation does not match the edition of your digital entitlement, error code 0xc004f210 may occur. To correct this issue, you will need to implement one or more manual repair procedures. This will depend on the problem that caused the error to occur in the first place.

Further Information and Manual Repair

The methods below are simple procedures that Windows users lacking technical knowledge will be able to successfully complete. However, do contact a Windows repair technician if you have difficulty completing the manual repair methods listed below, or if the problem persists after completing these steps.

Method One: Enter Valid Product Key

In order to successfully activate your Windows 10 operating system and resolve error code 0xc004f210, you will need to enter a valid product key. Ensure you enter the 25-character code in the order it is given as making a simple mistake while typing the product key can lead to the reoccurrence of the error code. Follow the instructions below to enter the product key.

• Step one: Click the Start button then select Settings
• Step two: Select Update & security then Activation
• Step three: Click the Change product key
• Step four: Type in your valid product key with its 25 characters in the correct order

You should be able to successfully activate Windows 10 once you complete the process. However, move to the next manual method suggested below if the problem persists as error code 0xc004f210 could be due to an issue with your digital entitlement.

Method Two: Reinstall Windows 10 Edition that Matches Your Digital Entitlement

Digital entitlement, a new form of activation that doesn’t require the use of a product key, could be the real reason you are experiencing error code 0xc004f210 on your device. To combat any issues related to your digital entitlement, ensure the version of Windows 10 installed on your system matches your digital entitlement. This will require that you reinstall your operating system as well. After reinstalling Windows 10, follow the steps below to complete the process.

• Step one: Click the Start button then select Settings
• Step two: After selecting Settings, click Update & Security
• Step three: Select Windows Update then the Check for updates tab
• Step four: Activate Windows 10 update

If this method is successful, you will no longer see the error code 0xc004f210 pop up on your screen. However, contact a Windows repair technician to evaluate your system if the issue persists.

Method Three: Use an Automated Tool

This method involves the use of a powerful automated tool. But why is this important you might ask? A third-party tool is often the best solution when all manual repair efforts fail. Automated tools come equipped to tackle the most serious PC problems including error codes which can cause frustration and result in reduces PC performance.

What is PyLocky ransomware? And how does it execute its attack?

PyLocky ransomware is a file-locking malware created in order to lock important files and demand ransom from victims in exchange for data recovery. This new ransomware uses the .lockymap extension in marking the files it encrypts. It starts to execute its attack by dropping the following malicious payload in the system:

Name: facture_4739149_08.26.2018.exe SHA256:8655f8599b0892d55efc13fea404b520858d01812251b1d25dcf0afb4684dce9 Size: 5.3 MB

After dropping its malicious payload, this crypto-malware connects the infected computer to a remote server where it downloads more malicious files and places them on system folders. It then applies a data gathering module used to gather data about the user and the computer. The malicious files that were downloaded earlier along with the data obtained are used for another module called stealth protection. This allows PyLocky ransomware to execute its attack without detection from any security or antivirus programs installed in the system. It also modifies some registry keys and entries in the Windows Registry such as:

• HKEY_CURRENT_USERControl PanelDesktop
• HKEY_USERS.DEFAULTControl PanelDesktop
• HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun
• HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun
• HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunOnce
• HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRunOnce

Once all the modifications are carried out, PyLocky ransomware will begin encrypting its targeted files using a sophisticated encryption cipher. Following the encryption, it adds the .lockymap extension to each one of the encrypted files and releases a ransom note named “LOCKY-README.txt” which contains the following content:

“Please be advised: All your files, pictures document and data has been encrypted with Military Grade Encryption RSA ABS-256. Your information is not lost. But Encrypted. In order for you to restore your files, you have to purchase a Decrypter. Follow these steps to restore your files. 1* Download the Tor Browser. ( Just type in google “Download Tor“ 2‘ Browse to URL: http://4wcgqlckaazungm.onion/index.php 3* Purchase the Decryptor to restore your files. It is very simple. If you don’t believe that we can restore your files, then you can restore 1 file of image format for free. Be aware the time is ticking. Price will be doubled every 96 hours so use it wisely. Your unique ID : CAUTION: Please do not try to modify or delete any encrypted file as it will be hard to restore it. SUPPORT: You can contact support to help decrypt your files for you. Click on support at http://4wcgqlckaazungm.onion/index.php”

How does PyLocky ransomware spread over the web?

PyLocky ransomware spreads using malicious spam email campaigns. Creators of this threat embed an infected attachment to spam emails and send them using a spambot. Crooks may even use deceptive tactics to trick you into opening the malware-laden immediately which is something you must not do. Thus, before opening any emails, make sure that you’ve thoroughly checked them. To successfully obliterate PyLocky ransomware from your computer, refer to the removal guide laid out below.

• Step 1: Launch the Task Manager by simply tapping Ctrl + Shift + Esc keys on your keyboard.
• Step 2: Under the Task Manager, go to the Processes tab and look for the process named facture_4739149_08.26.2018.exe and any suspicious-looking process which takes up most of your CPU’s resources and is most likely related to PyLocky ransomware.
• Step 3: After that, close the Task Manager.
• Step 4: Tap Win + R, type in appwiz.cpl and click OK or tap Enter to open Control Panel’s list of installed programs.
• Step 5: Under the list of installed programs, look for PyLocky ransomware or anything similar, and then uninstall it.
• Step 6: Next, close the Control Panel and tap Win + E keys to launch File Explorer.
• Step 7: Navigate to the following locations below and look for PyLocky ransomware’s malicious components such as facture_4739149_08.26.2018.exe and LOCKY-README.txt as well as other suspicious files, then delete all of them.

%TEMP% %WINDIR%System32Tasks %APPDATA%MicrosoftWindowsTemplates %USERPROFILE%Downloads %USERPROFILE%Desktop

• Step 8: Close the File Explorer.
• Step 9: Tap Win + R to open Run and then type in Regedit in the field and tap enter to pull up Windows Registry.
• Step 10: Navigate to the following path:

HKEY_CURRENT_USERControl PanelDesktop HKEY_USERS.DEFAULTControl PanelDesktop HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRun HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunOnce HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionRunOnce

• Step 11: Delete the registry keys and sub-keys created by PyLocky ransomware.
• Step 12: Close the Registry Editor and empty the Recycle Bin.

Try to recover your encrypted files using the Shadow Volume copies Restoring your encrypted files using Windows Previous Versions feature will only be effective if PyLocky ransomware hasn’t deleted the shadow copies of your files. But still, this is one of the best and free methods there is, so it’s definitely worth a shot. To restore the encrypted file, right-click on it and select Properties, a new window will pop up, then proceed to Previous Versions. It will load the file’s previous version before it was modified. After it loads, select any of the previous versions displayed on the list like the one in the illustration below. And then click the Restore button.

This post will walk you through fixing the rtwlane.sys Blue Screen error. This kind of BSOD error belongs under the category of the “DRIVER IRQL NOT LESS OR EQUAL” Stop errors. If you encounter this kind of Stop error then it means that a kernel-mode driver tried to access pageable memory at a process IRQL that was too high. The main issue with the rtwlane.sys Blue Screen error has something to do with the Realtek PCI-E Wireless LAN PCI-E NIC driver. In other words, it has some issues with the wireless card of your computer which is built by Realtek. And since it this error concerns your wireless card, you might also experience some connectivity problems with your computer as the wireless card refuses to find any network connections and even randomly disconnects. To resolve this problem, you need to refer to the given options below.

Option 1 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like rtwlane.sys Blue Screen error. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 2 – Try to update or rollback your Network driver

If you have updated the driver software as of late and you suddenly got this BSOD error, you might have to roll back the device driver – in other words, switch back to the previous working version. To do that, follow these steps:

• Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
• From the list of Network Drivers, look for “Realtek <Model> Wireless LAN 802.11n PCI-E NIC” and then right-click on it and select Update Driver.
• Restart your PC and see if it helped in fixing the BSOD error.

Note: If you see any of the following entries under the Network drivers, you might want to download their latest available versions from each one of their manufacturer’s websites.

• Realtek High-Definition (HD) Audio Driver
• Realtek Card Reader Driver
• Realtek Local Area Network (LAN) Driver

On the other hand, if updating the Network driver didn’t help, you can also try to roll back to its previous version.

• Open the Device Manager again and then look for Network Drivers.
• Next, select Realtek <Model> Wireless LAN 802.11n PCI-E NIC from the list of Network Drivers and then double click to open a new mini window.
• After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of the Realtek driver.
• Now restart your computer to successfully apply the changes made.

Option 3 – Try running the System File Checker Scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Netwtw04.sys failed BSOD error. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

If you’re having some problem browsing multiple websites on the Firefox browser on your Windows 10 computer, then this post might be of help. One of the most common problems you could encounter in Firefox is mostly related to HTTPS and one of them is the MOZILLA PKIX ERROR MITM DETECTED or ERROR SELF SIGNED CERT or SEC ERROR UNKNOWN ISSUER error which means that Firefox was unable to trust certificates issued on secured websites. If you encounter the MOZILLA_PKIX_ERROR_MITM_DETECTED error in Firefox, this indicates that something in your network or system is interrupting your connection and injecting certificates and when that happens, Firefox won’t trust it. In such cases, one of the culprits is malware. Malware will try to replace a legitimate certificate with its certificate. Another cause is security software where it keeps a tab on a secure connection and creates a false positive, for instance:

“In Microsoft Windows accounts protected by Family Safety settings, secure connections on popular websites like Google, Facebook and YouTube might be intercepted and their certificates replaced by a certificate issued by Microsoft in order to filter and record search activity.”

And if you are connected to a corporate network, there might be a monitoring/filtering product that could be replacing certificates. Moreover, there are also users who reported getting this issue when they use the Nightly version of Firefox. And if that’s the case, you have to try accessing secure websites using only the stable build especially when it comes to payments. However, if you are not doing that, then here are some options you need to check out.

Option 1 – Try turning off HTTPS Scanning on your security and antivirus programs

Each security-based software has a security option that allows you to turn off the HTTPS scanning functionality. They may be available under different names such as HTTPS Scanning, Scan SSL, Show safe result, Do not scan encrypted connections, etc. Find what is applicable for your security or antivirus software and then try turning it off temporarily and see if it helps in fixing the MOZILLA_PKIX_ERROR_MITM_DETECTED error in Firefox.

Option 2 – Try to disable security.enterprise_roots.enabled

The next thing you can do if the first option didn’t work is to disable security.enterprise_roots.enabled which is an HTTPS certificate check on Firefox. Note that this is not recommended but you have to at least try in order to fix the error.

• Open Firefox and then type “about: config” in the Firefox address bar and hit Enter.
• After that, if an info message appears, confirm it.
• Next, search for the security.enterprise_roots.enabled preference and once you found it, double click on it.
• Then change its value to true and restart the Firefox browser once. This will import all the custom certificates from the other security software into Firefox. As a result, it will make sure to mark those sources as trusted and you won’t get the MOZILLA_PKIX_ERROR_MITM_DETECTED error.