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How to Fix fltmgr.sys in Windows 10

The fltmgr.sys file or the Filter Manager is the one that’s responsible in making sure that all the file stored in a computer’s hard drive stays on their respective locations and is located in C:/Windows/System32/drivers. Now when you encounter a Blue Screen of Death or BSOD error saying, “Your PC ran into a problem that it couldn’t handle, and now it needs to restart. SYSTEM_SERVICE_EXCEPTION”. This kind of Stop error is due to an error with the driver that’s responsible for enabling the communication between the hardware and the computer. It indicates that this driver allows direct access to the internal hardware from the CPU itself.

What’s worse about the SYSTEM_SERVICE_EXCEPTION BSOD error is that there are times when you won’t be able to log in to your computer even after it reboots. However, you need not worry as this post will guide you into fixing this BSOD error. All you have to do is follow the given options below carefully and that before you proceed make sure that you create a System Restore point just in case something goes wrong.

Option 1 – Run the Windows Update

Obviously, since the fltmgr.sys file is a system file from Microsoft, you can try running the Windows Update and see if it fixes the problem or not.

Option 2 – Run the System File Checker

The System File Checker, also known as the SFC scan, is a built-in utility in Windows that can be found in the C:/Windows/System32 folder. This tool allows you to scan and restore any corrupted system files in Windows that might be causing the SYSTEM_SERVICE_EXCEPTION BSOD error. To use this tool, follow the steps 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.
  • Restart your computer and then check if it has fixed the error or not.

Option 3 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that 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 4 – Check your hardware for any physical issues

There are times when faulty hardware can result in serious problems in the system such as the SYSTEM_SERVICE_EXCEPTION Blue Screen error. Thus, it is highly recommended that you check the internal components of your CPU to find out if there are any problems. And if there is any physical damage, you need to bring that to a technician to get it fixed or have it replaced.

Option 5 – Run the CHKDSK utility

You can also run the Chkdsk utility to resolve the BSOD error. The Chkdsk utility is the one that repairs hard drive errors that might be causing the problem.

  • Open Command Prompt with admin privileges.
  • After opening Command Prompt, execute the commands listed below, and don’t forget to hit Enter right after you type in each one of them and if you have installed Windows to some different directory, you must replace “C” with the name of the drive you’ve installed Windows with.
  • chkdsk C: /r /x
  • chkdsk C: /f

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SYSTEM_THREAD_EXCEPTION_NOT_HANDLED CMUSBDAC.sys
If you encounter a Blue Screen error that points out to the CMUDA.sys, read on as this post will guide you in fixing it. The CMUDA.sys file is a Windows operating system driver file that is related to the USB Device Audio capabilities of a computer. There are times when this file causes Blue Screen error due to some conflicts in RAM or some incompatible firmware or hard disk issues, corrupted drivers or malware infection, and so on. There are various Blue Screen errors that are related to the CMUDA.sys file such as:
  • KMODE EXCEPTION NOT HANDLED
  • PAGE FAULT IN A NONPAGED AREA
  • IRQL NOT LESS OR EQUAL
  • SYSTEM THREAD EXCEPTION NOT HANDLED (CMUSBDAC.sys)
In most cases, the CMUDA.sys file usually triggers the SYSTEM_THREAD_EXCEPTION_NOT_HANDLED Blue Screen error. Although this Blue Screen error may seem complicated, its workarounds are straightforward so you won’t have any problems in following them.

Option 1 – Try to update or rollback your device drivers

If the first option didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.
  • Open the Devices Manager from the Win X Menu.
  • After opening the Device Manager, locate the device drivers that are marked with a small yellow exclamation mark icon and right-click on each one to open their Properties. On the other hand, you can also look for sub-entries under Sound, video, and game controllers like the C-Media USB Audio Class
  • After that, switch to the Driver tab and click on the Uninstall Device button.
  • Follow the screen option to completely uninstall it.
  • Finally, restart your computer. It will just reinstall the device drivers automatically.
Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer. You can download the as C-Media USB Audio Class driver from the cmedia.com website.

Option 2 – Try to recreate the CMUDA.sys file

The first thing you can try is to recreate the CMUDA.sys file. Every time your Windows 10 PC boots up, it looks for all the system drivers in place and if it is unable to find them, it tries to create them. Which is why if you remove your corrupt driver file, chances are, you might get a fixed file recreated just for you. How? Refer to the steps below.
  • Boot your Windows 10 PC in Safe Mode.
  • Then open File Explorer and navigate to this location: C:/Windows/System32/drivers
  • From there, look for the file named sys and rename it to CMUDA.old.
Note: As you can see, the file’s extension has changed from .sys to .old.
  • Now restart your computer and check if the CMUDA.sys Blue Screen error is now fixed.

Option 3 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors. 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.
  • After that, 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.
On the other hand, you can also try running the online Windows 10 Blue Screen troubleshooter from Microsoft. It is a wizard that could help you fix any Stop errors related to the CMUDA.sys file and will offer you helpful links as you use it.

Option 4 – Try running the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the Wdf01000.sys Blue Screen error. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.
  • Open the Command Prompt with admin privileges.
  • Then type in the following commands and make sure to hit Enter right after you type each one of them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • exe /Online /Cleanup-image /Restorehealth
  • Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 5 – Run System Restore

Running System Restore might also help in fixing Blue Screen errors related to the CMUDA.sys file.
  • 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.
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Quick Solution Guide to Error Code 40

Error Code 40 – What is it?

Error Code 40 is a device driver error that users encounter on any Windows 2000 and later operating systems. It occurs when the peripheral device that you connect to your PC cannot be accessed due to a change in the system registry.

This is due to the presence of invalid sub-keys of the device driver in the system registry. It is a common error that users come across and appears on your PC with either of the following messages:

“Information in the registry entry for this driver is invalid”

OR

"Windows cannot access this hardware because its service key information in the registry is missing or recorded incorrectly. (Code 40)"

Solution

driverfix boxError Causes

As mentioned above, the error code is triggered when the device driver’s invalid sub-keys appear in the registry, effectively changing it. This happens when the windows system files get damaged due to the following factors:

  • An incomplete program uninstallation
  • An incomplete program installation
  • Hardware is not removed properly
  • System recovery from viruses
  • An improper system shut down

Factors such as incomplete installations or uninstallations or an improper system shut down can cause files to become damaged that threaten the health of your computer.

Removing viruses from the computer is also another factor as it removes the entries in the Windows system files which contain the viruses including spyware or malware

Further Information and Manual Repair

Fixing Error Code 40 is similar to fixing other device manager error codes. Here are a few methods you can try.

Method 1 – Use System Restore

You can use system restore to eliminate the problem. Here is how you can use it:

  • Log in using an Administrator account
  • Click ‘Start’ button and select All Programs > Accessories > System Tools > System Restore
  • Click ‘Restore my computer to an earlier time’ and click ‘Next’
  • Select the last Windows restore point from the ‘On this list, click a restore point’ list, and click ‘Next’
  • Click ‘Next’ on the confirmation window to proceed
  • Restart your PC after restoration is complete
By restoring the system via a last saved system checkpoint, you can obtain undamaged Windows system registry files that can help avert the error code.

Method 2 – Manually uninstall then reinstall the device driver

If using system restore also does not work in removing the error code, you may have to resort to manually uninstalling and then reinstalling the device driver causing the problem.

This would be necessary since the remaining incomplete files due to a partial removal or installation of programs is what contributes to the error code. By uninstall and reinstalling the device driver program, it would lead to the completion of the files.

You can do this by firstly logging in as Administrator and open Device Manager. Select the device that is causing the problem and double click it and make sure that the peripheral is connected properly to the PC. Upon opening, click on the ‘Driver’ tab and then select ‘Update Driver’.

Make sure to refer to the system documentation that you received with your PC or computer to check for the motherboard details and driver specifics.

Method 3 – Use software to automatically download the driver

Manually uninstalling and reinstalling the driver will do the trick, however, it may be time-consuming especially when you would have to resort to your hardware user manual.

Therefore, using a program such as DriverFIX can save you a lot of time and frustration in having your device work properly on your computer.

DriverFIX, with its user-friendly approach to help you fix your PC issues, comes with an integrated database that detects which drivers you need to reconfigure within just a few seconds and downloads it automatically.

It further ensures that your drivers are installed in their entirety leaving no room for any incomplete files to remain that create Error Code 40.

It also has the added advantage of being able to backup and restores your files should there be the slightest possibility of system file damage.

Thus, registry damage can be averted by letting the software roll back the system files to an earlier healthy checkpoint. Driver Assist is the answer to fixing your PC error codes accurately and quickly.

Click here to download DriverFIX to fix Error Code 40 quickly and effectively!
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How to Fix Socket Error 10013

Socket Error 10013 - What is it?

Socket error 10013 is an error code that often pops on the screen when you try to access the server. This error code restricts your permission to access. It shows that your permission request was denied. The error message is displayed in the following format:
“Socket.error: [Errno 10013] an attempt was made to access a socket in a way forbidden by its access permissions”

Solution

Restoro box imageError Causes

Narrowing down a particular reason for the cause of socket error 10013 is difficult, typically because this error code can be generated due to several reasons. Here are some of the common reasons for its occurrence on your PC:
  • High-security set up- Firewall or an antivirus program
  • Too many functions tied to the same driver confuses the socket
  • Outdated drivers
  • Malware
The good news is that the socket error 10013 is not fatal. However, it is advisable to fix and resolve the issue to avoid inconvenience.

Further Information and Manual Repair

Here are some of the best, quickest and easiest methods to work around the problem and resolve socket error 10013 without any hassle or delay.

Method 1 - Turn off Firewall

Believe it or not, a high level of internet security measures like Firewalls and anti-virus programs are a common cause of socket error 10013. Firewalls are made to protect a computer from harmful connections but sometimes it may also restrict server connections, considering them as a threat to your system security. Due to this, permission access is adamantly denied. To resolve this issue on your PC, the best way to go about is to turn off your Firewall or any other anti-virus programs installed on your system. Once you turn off these programs, try accessing the server again. The majority of the time the issue is resolved by carrying this step. Nonetheless, if the error still persists, try the methods given below.

Method 2 - Check the Permissions section of the Firewall Program

Another way to resolve this is to check the permission section of the Firewall program and check for the server. If the server is not listed, contact the Internet Service Provider (ISP) and ask for help in adding the server to the list.

Method 3 - Update Drivers

The outdated driver may sometimes be the reason for the socket error 10013.  The socket may no longer use the drivers installed on your PC which is why permission to access the server is not granted. When this is the reason, try updating the drivers to resolve. For new drivers, visit the software manufacturers’ website, download, and install.

Method 4 - Scan for Viruses and Malware

Another alternative is to scan for viruses and malware. Sometimes the cause for the error is a viral infection. Therefore, remove them to resolve. The best way is to download Restoro. This is a user-friendly and next-generation PC Fixer embedded with 6 scanners including a powerful anti-virus. It scans your entire PC and removes all types of viruses including malware, adware, spyware, and Trojans in seconds. Click here to download Restoro.
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How to clear cache inside Windows 11
Cache files are temporary files that have been created by various applications and services when used.  As temporary files, they are safe to be removed and deleted from the system since the application or service will create new ones when needed but sadly will not remove old ones, this task is left to OS itself. windows 11 cacheAutomatic Windows cleanups can mostly take care of these things but for top-notch performance clearing cache manually is a far better option. We will here explore various cache temporary files, where they are, and how to clean them. Sit back and let’s do some cleaning!

Clear cache using Disk Cleanup

  1. Open Start menu and search Disk Cleanup
  2. Click on it in search results
  3. Click on the drives drop-down menu and select the drive where is Windows 11 installed
  4. In the Files to Delete section enable all boxes and click on OK
  5. Click on delete Files to confirm

Clear Microsoft store cache

  1. Press ⊞ WINDOWS + R to open the run dialog
  2. Type in WSReset.exe and press ENTER
  3. Black blank windows will appear, wait for the window to close itself and you are done

Clearing location cache

  1. Press ⊞ WINDOWS + I to open location history
  2. Select Privacy & Security
  3. In the App Permissions section click on Location
  4. On-Location page click on Clear

Clear and flush DNS

  1. Press Start and search for Windows Terminal
  2. Click on Terminal in search results
  3. Type in: ipconfig /flushdns and press ENTER
And that is that!
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Hearthstone lost connection to the game server
Since its release, Hearthstone has changed and innovated how digital card games are played. From its cross-platform matchmaking to interesting random mechanics and making the game free to play from day 1 have paved the road to Hearthstone's success. If you by any chance get lost connection to game server error and find yourself unable to play please stay awhile and listen Keep reading and try provided solutions as they are presented to fix this issue and continue gaming.
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Resolve Error 0x80240020 in Windows 10

Error Code 0x80240020 – What is it?

Error code 0x80240020 is a Windows 10 upgrade error code that affects users who attempt to upgrade their Windows operating system. This may occur due to a particular program that blocks the upgrade from completing. It can also result when other PC issues interfere with the upgrade process by disrupting the ability of Windows Update to download updates on one’s machine. Common symptoms of error code 0x80240020 include the following:

  • Message box detailing the presence of error code 0x80240020
  • Inability to complete Windows 10 upgrade process

Solution

Restoro box imageError Causes

Upgrade error codes occur when Windows users experience upgrade failure while using Windows Update, the Microsoft Windows Update website, the Microsoft Update website, or the Windows Server Update Services (WSUS) server. Disruption may cause this process to fail, for instance, due to system file corruptions or problems related to the Windows Update services.

Further Information and Manual Repair

To correct issues related to error codes, it is often best to apply manual repair methods. These help Windows users determine the root causes of the error code and provide solutions that permanently fix these issues. For instance, if error code 0x80240020 on your machine is due to an issue within the Windows Update tool, you will need to first verify that this is the problem by using a troubleshooter option found within your machine’s settings. The troubleshooter will detect and fix the issue.

Most of these manual repair methods can be implemented by any Windows user, regardless of their background, technical abilities, or lack thereof. However, in certain cases, technical skills are required. If you have trouble implementing the procedures highlighted below or in any other error code article found on this site, consider getting help from a Windows repair technician or use a powerful automated tool.

Below are details regarding the manual repair methods for fixing error code 0x80240020. Ensure you follow the instructions correctly. After all, any error you make will likely cause further problems on your machine and prevent you from resolving error code 0x80240020 in Windows 10.

Method One: Run Windows Update Troubleshooter

One way to fix error code 0x80240020 is to troubleshoot Windows Update. To do this you will need to access Settings within your machine then simply select the relevant troubleshooting options available. Follow the instructions below:

  • Step one: Type Settings within search box near Start button then press Enter
  • Step two: In the search box within Settings, type Troubleshooting
  • Step three: Select the troubleshooting option
  • Step four: Under System and Security, select Fix problems with Windows Update
  • Step five: Under Windows Update, select Resolve problems that prevent you from updating Windows.
  • Step six: Click Next and wait for the troubleshooter to detect and fix problems

If there are problems with Windows Update, the troubleshooter will be able to fix them. Once this process is complete, restart your PC and then reopen Windows Update. Attempt to upgrade your Windows operating system. If Windows Update completes the process and your machine downloads and runs the upgrade, you have successfully resolved error code 0x80240020.

If, however, there is another upgrade failure and the message box detailing the presence of error code 0x80240020 in Windows 10 appears, you will need to apply another manual repair procedure. Please see below for further details regarding manual repair method two.

Method Two: Use SFC to Scan and Fix Corrupted System Files

Corrupted or missing system files may interfere with your machine’s ability to successfully download an upgrade. For this reason, scan and fix any problems related to system files on your machine using Command Prompt. This manual repair method is often called a System File Check/ Checker (SFC).

  • Step one: Right-click Start Menu
  • Step two: Select Command Prompt (Admin)
  • Step three: Type sfc /scannow

To ensure you follow this procedure correctly, enter the command as it is written above, with a space between “sfc” and “/scannow”. Once missing, corrupted or damaged files are present on your machine, the SFC command will enable Command Prompt to scan and fix these issues.  Wait until the process is complete then reboot your PC.

With your system successfully rebooted, reattempt the Windows 10 upgrade process in Windows Update or on the Windows Update website. If the issue causing error code 0x80240020 was related to problems with system files, you should be able to complete the upgrade after using the SFC tool.

Method Three: Download an Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

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Enable Windows Sandbox on Windows
One of the most common ways cybercriminals use to inject suspicious code into devices is by tricking users into installing a malicious program on a targeted device. Oblivious users are vulnerable to such tricks, which is why Microsoft has been working hard in the background to address this issue. Recently, Microsoft announced the availability of a sandboxed version of Windows 10 that runs inside Windows 10 in order to isolate suspected software to run inside it and protect the system from potential threats. This Windows Sandbox feature is a new feature that keeps your computer secure. It is a virtual disposable environment that you can enable. So if suspect any software of being malicious, you can run this software in an environment and ensure that it won’t interfere with any normal processes and would not jeopardize files on your computer. To simply put it, “Windows Sandbox is a new lightweight desktop environment tailored for safely running applications in isolation”. So if the Sandbox is closed, all the residual files, software, and other data are deleted permanently. To enable Windows Sandbox, refer to the instructions provided below. Step 1: You have to make sure that you are running either Windows 10 Enterprise Editions or Windows 10 Pro and that your computer is running build 18305 or newer. Step 2: After that, you have to enable Virtualization to let another instance of Windows 10 running in Sandbox mode. Step 3: Next, search for Windows Features on and off in the search box and then select the appropriate entry. Step 4: From the list, go to the mini window and check the Windows Sandbox and then click on OK. Step 5: Afterwards, in the Cortana Search box, search for “Windows Sandbox” and select the related entry to run it in an elevated window. Step 6: Then from your main computer (host), copy the executable file and paste it inside the Windows Sandbox environment. Step 7: Now run the executable file in the Sandbox environment and use it as you normally do. Step 8: Once you’re done, close the Windows Sandbox application and as mentioned, every data regarding the executable file and the temporary environment will be deleted. Step 9: And for the sake of safety, ensure that there are no modifications made to the host because of the executions in the Sandbox environment. You have the option to contact Microsoft for feedback related to Windows Sandbox. You can use the traditional Feedback Hub if you have any suggestions or any issues. Just fill in the appropriate details and select Windows Sandbox for the feature category under the Security and Privacy section. And if you have any issues related to the execution of and within Windows Sandbox, simply choose “Recreate my problem” then select Start capture to reproduce the issue, and once you’re done, select Stop capture.
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Makecab.exe is running & consuming CPU
The Makecab.exe process that’s running on your Windows 10 computer is a program that compresses the Component-Based Servicing log or CBS log files and they can get really huge if they’re not compressed. As a result, it would utilize important space on your operating system although makecab.exe does not consume high CPU resources in doing so. However, there are times when it recreates thousands of instances of itself and could cause overconsumption of system resources which slows down your computer. So when the makecab.exe process causes high CPU usage in your system, this could mean that there is a failed Windows Update. In addition, the high CPU usage of the makecab.exe process could also mean that your computer is infected with a virus or malware. Whichever the case is, you can check out several possible solutions that are given in this post to resolve the problem.

Option 1 – Try to delete log file using File Explorer

The CBS log files could reach up to 20GB size and so if you delete them, it would help in saving space in your computer and since they’re not much of use, deleting them won’t negatively affect the system at all. To delete the CBS log files, all you have to do is open the File Explorer and then go to C:/Windows/Logs/CBS and from there, open the CBS log files and delete them all. Doing so should ease the load in the makecab.exe process since it no longer has to compress the CBS log files. As a result, the process would be more relaxed. After that, you can restart your computer and check if the problem’s now fixed.

Option 2 – Try deleting the log file via Command Prompt

You can also try to delete the log files using an elevated Command Prompt. Refer to these steps to do so:
  • Type “command prompt” in the Windows Search bar and then right-click on the related search result and select the “Run as administrator” option.
  • Next, type the following command and hit Enter to execute it:
del /f %windir%logscbs*.log
  • Restart your computer afterward once the command has been executed. This should end the high disk usage by makecab.exe, if not, proceed to the next given options below.

Option 3 – Uninstall any suspicious programs you’ve installed recently

If you have recently installed some programs on your Windows 10 computer, and since then you’ve experienced high CPU usage brought on by makecab.exe, then you might want to uninstall those programs.
  • Tap the Win + R keys to open the Run dialog box
  • Then type “appwiz.cpl” in the field and hit Enter to open the Programs and Features in Control Panel.
  • From there, look for the suspicious programs you’ve installed, select them and then click on Uninstall to remove them.
  • After that, restart your computer and try to install the latest version of the program again. It should work now. If not, proceed to the next available option below.

Option 4 – Try running Disk Cleanup

You might want to run the Disk Cleanup utility as it is a useful tool that could delete temporary and useless files on your computer.
  • Tap the Win + R keys to open the Run dialog box and then type “cleanmgr” in the field and hit Enter to open the Disk Cleanup window.
  • After that, select the drive you want to clean.
  • Now click OK to clean the disk and restart your computer.

Option 5 – Try to run System File Checker scan

System File Checker or SFC is a built-in command utility that helps in restoring corrupted files and missing files. It replaces bad and corrupted system files to 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.
  • Restart your PC.

Option 6 – Try scanning your computer using Windows Defender

As mentioned, the high CPU usage of makecab.exe might be caused by some malware or virus in the system and so to eliminate it, you have to scan your computer using security programs like Windows Defender.
  • Tap the Win + I keys to open Update & Security.
  • Then click on the Windows Security option and open Windows Defender Security Center.
  • Next, click on Virus & threat protection > Run a new advanced scan.
  • Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.
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How to Repair BSOD Stop Error code 0xc000021a in Windows 10

Error code 0xc000021a - What is it?

Error code 0xc000021a occurs when the system is unable to start or there’s a failure in critical system processes. Normally, it would take about several seconds for the system to boot and while on the startup process, error code 0xc000021a may take place to block the system to boot up. Users will get a blue screen of death (BOSD) when this error occurs. When upgrading to Windows 10, be careful; you might encounter other error messages such as error code 8007002c

Solution

Restoro box imageError Causes

There are several reasons why error code 0xc000021a occurs. It is important to have a full understanding of what caused the blue screen of death before attempting to fix the error by yourself. See below for a few common causes:

Computer malware has infiltrated your device.

• Important files such as Winlogon.exe and Csrss.exe are damaged. Winlogon.exe file is responsible for handling the login and logout processes while Csrss.exe is a vital part of Microsoft Client or Server ‘Runtime Server Subsystem’. Once one of these files is damaged or deleted, a stop error will occur.

• When there are mismatched system files installed or system upgrading process failed or still incomplete.

• Premature unloading of Wbemprox.dll

• Newly installed third-party software is not compatible with the operating system.

• There are corrupted, outdated, or incorrectly configured device drivers.

• There’s insufficient space in the system partition. Once the system partition is full, certain errors such as error code 0xc000021a will manifest.

• Windows registry is corrupted or damaged due to a software or system change. This means there are registry entries that are not cleared after uninstalling an application.

Further Information and Manual Repair

In fixing error code 0xc000021a, you might want to try and manually do so. Manual repair methods can give users effective and efficient solutions, addressing the root problems in relation to Windows error codes. Once the manual repair method is correctly implemented, users will be able to resolve issues immediately. However, there might be instances when a Windows professional is needed. In such cases, seek help from a certified Windows expert or you might want to consider using an automated tool whenever necessary.

Method One: Convert the Drive or Partition from NTFS to GPT

In order to fix Error code 0xc000021a in Windows 10, you might need to convert the partition or drive from NTFS to GPT. See below for the procedure: 1. Shut down your device then put in the Windows installation USB key or DVD. 2. Boot your device to the USB key or DVD in UEFI mode. 3. Inside the Windows Setup, open a Command Prompt window by pressing Shift + F10. 4. Type diskpart in the Command Prompt window to open the diskpart tool. 5. Type list disk to identify which drive to reformat. 6. Select which drive to reformat by typing select disk in the command prompt. Afterward, type clean then hit Enter. Once done, type convert gpt to be able to convert the drive from NTFS to GPT. Finally, type exit and press Enter. You can now close the Command Prompt window. 7. Once the partition or drive is converted from NTFS to GPT, the user can now continue the Windows Setup installation. NOTE: Select Custom in choosing which installation type to use. The drive will then appear as a single area of unallocated space. Choose that unallocated space then select Next. At this point, Windows will now begin the installation.

Method Two: Fix System File Errors

There are times when system files get corrupted or damaged which will result in system failure. If this is the case, you can use a Windows free tool to repair corrupted or damaged system files. 1. Right-click on the Start button then selects Command Prompt (Admin) from the list to open a Command Prompt window. 2. Once the Command Prompt appears, type sfc /scannow then hit Enter. Wait until the process completes. If the process is completed and it doesn’t report any error or issues that remain unsolved, you might want to employ the next method.

Method Three: Reset Windows 10

Resetting Windows will delete all software and user accounts installed in the operating system and will reinstall a fresh Windows. 1. Boot your device using a Windows installation USB key or DVD. Select Repair your computer to locate the Troubleshoot option. Afterward, choose Reset this PC. NOTE: If the device is able to boot the system, you can reset Windows without using a Windows installation USB key or DVD. You just have to boot the device then navigate to Settings in the Start button. Choose Update & Recovery then select Recovery found on the left pane. Choose Reset this PC option then select Go back to an earlier build and Advanced startup. Select Get Started button found in the Reset this PC tab. 2. Depending on your device’s condition, you can either select Keep my files or Remove everything. Both options will remove all applications installed in the device and will revert to default settings. 3. Choose either Just remove my files or Remove files and clean the drive depending on the situation. If you choose the Remove files and clean the drive option, the procedure will take longer as it will erase all the files permanently. In this case, deleted files cannot be recovered. However, if you don’t want to remove files permanently, select Just remove my files. 4. Once you’ve decided how to reset your system, click on Next once the Warning screen appears. Afterward, choose Reset once prompted. When the process completed, click on Continue.

Method Four: Download an Automated Tool

Can’t seem to put up with the long and technical manual repair process? You can still fix this error by downloading and installing a powerful automated tool that will surely get the job done in a jiffy!
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Change Network from Public to Private error
You have the option to choose to configure the Network to Private or Public when you set it on Windows 10 PC. On the other hand, if the option to change the Network from Public to Private goes missing in Windows Settings then this post will surely help. You can find this setting under Settings > Network and Internet > Ethernet and appears when you click on it. If you are not able to see the option to change the network profile, then you either can’t open the settings, or the option to change it has been disabled. To resolve this issue, you can either use the Registry Editor or Windows PowerShell. Refer to the options given below for more details.

Option 1 – Change the Network Profile via Registry Editor

Changing the Network Profile can be done using the Registry Editor. But before you proceed, make sure that you create a System Restore Point first just in case. Refer to the steps below to do so.
  • Tap the Win + R keys to open the Run dialog box.
  • Then type “Regedit” in the field and hit Enter to open the Registry Editor.
  • After that, navigate to this key: HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionNetworkListProfiles
  • Now expand the Profiles key folder located in the left pane to see one or more folders.
  • Next, expand each one of these folders and look for the “Description” sub-key which should match the name of your network.
  • After you find the Description sub-key, look for another sub-key named “Category” and double click on it to open it.
  • Now change its value from “0” to “1” to change the Network Profile from Public to Private.

Option 2 – Change the Network Profile via Windows PowerShell

Aside from the Windows Registry, you can also use Windows PowerShell in changing the Network Profile from Public to Private and so on. Take note that you have to use PowerShell with admin privileges. Just refer to the steps below to do so.
  • Tap the Win + X keys and then select the “PowerShell (Admin)” option.
  • Next, click on Yes if the User Account Control prompt appears.
  • After that, execute the commands listed below. Hit Enter right after you key in each one of them.
    • Get-NetConnectionProfile
    • Set-NetConnectionProfile -InterfaceIndex <index number> -NetworkCategory Private
Note: Since every Network Profile has an index number, you can check the label “Name” to identify the network that you want to change.
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