Fix wdf01000.sys BSOD Error on Windows

If you encounter a Blue Screen error that points to the Wdf01000.sys file, then this post might be of help. Wdf01000.sys is a file related to the Windows Driver Framework which is the one that manages the system drivers. So if this file ends up being corrupted, the drivers would start to cause trouble in the system which would lead to a Blue Screen of Death error eventually. There are lots of error descriptions that are associated with the Wdf01000.sys file such as:

  • DRIVER_IRQL_NOT_LESS_OR_EQUAL
  • System_Thread_Exception_Not_Handled
  • Page_Fault_In_Nonpaged_Area
  • System_Service_Exception
  • Kmode_Exception_Not_Handled
  • DRIVER_VERIFIER_DETECTED_VIOLATION

Although the troubleshooting steps you must take depends on the kind of BSOD error you are getting, there are a couple of options you can try to resolve the Blue Screen errors related to the Wdf01000.sys file. Refer to the options given below.

Option 1 – 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 2 – 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.
  • Then locate the device drivers and right-click on them to open the Properties.
  • 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.

Option 3 – Use the Driver Verifier Manager

The Driver Verifier Manager is another tool in Windows that could help you fix driver-related issues. And so if you want to fix the Wdf01000.sys Blue Screen error, you need to use the Driver Verifier Manager:

  • Type in the keyword “Verifier” in the Cortana search box to search for Verifier in Windows 10.
  • After that, select the option “Create custom settings”.
  • Make sure that you have checked everything except the options “DDI compliance checking” and “Randomized low resources simulation”.
  • Next, select the option “Select driver names from a list” option.
  • Afterward, you have to select all the drivers from any unofficial or third-party provider. To simply put it, you have to select all the drivers that are not supplied by Microsoft.
  • Then click on the Finish button.
  • Open Command Prompt as administrator and execute this command – verifier /querysettings
  • The command you just executed will display the Driver Verifier settings so if you see any of the flags enabled boot your Windows 10 PC into Safe Mode.
  • Open the Command Prompt as admin again and run this command – verifier /reset
  • The command will reset the Driver Verifier. Once the process is done, restart your PC and check.

Option 4 – Run the System File Checker Scan

System File Checker or 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 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.
  • Reboot your computer.

Option 5 – 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 Wdf01000.sys. 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.
  • 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.

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Combine Hard drives with storage spaces
Why combining hard drives with storage spaces? Ok, I will admit it, I am a modern digital hamster when it comes to digital goods. I like to collect stuff and more than anything else I like to have all of that at the tip of my fingers. And how digital goods grow in size themselves (movies on Blu-ray are like 50GB each) and the collection grows in size single hard drive is starting to be completely obsolete when it comes to storage. Sometimes we will need large storage for these kinds of personal collections, sometimes we will need it for work reasons. Whatever your reason might be Windows 10 is offering us a solution via Storage spaces. Storage spaces is an integral part of Windows and it is meant as a tool to provide you with a RAID environment without a RAID controller. Of course, combining multiple hard drives via storage paces instead of RAID will not be so fast or stable but for home use of storing a large quantity of data is perfectly enough. With Storage Spaces you will also have an option to reduce some space for increased security of data loss if by any chance one of your HDD fails.

How to Create a Storage Space

To create storage space in Windows, press ⊞ WINDOWS + R to open the run dialog. keyboard with windows and r markedIn the run box type in Control Panel and press ENTER run dialog with control panel typed inIn Control Panel find Storage Spaces and left-click on it. Control panel with storage spaces markedOnce storage spaces open, left-click on Create a new pool and storage space storage spaces manage storage spacesOnce you click on create new, you will be greeted with a list of hard drives you can use for this operation. storage spaces select drivesPlease note that all hard drives you choose will be completely erased and formatted and then assign a single drive letter. Click on Create pool. storage spaces resiliency type optionsYou will find yourself in new storage options where you can assign a drive letter, give storage space a name, etc.

Storage spaces types

One thing I would like to focus on here is resiliency type, when you expand the resiliency type drop-down menu you will see 4 options inside. Simple, Two-way mirror, Three-way mirrors, and Parity. Simple: If you choose Simple as an option, you will have maximum hard drive space but no resiliency at all, meaning that if by any chance any of your hard drives malfunction, you are losing your data from that drive completely. Two-way mirror: This option will save your data if one of your drives fails but you need at least 2 drives and storage space will be limited since some of it will be a safe backup option for the case of a drive failure. However if one of your drives fails, you can replace it in a second and keep on working as nothing happened. Three-way mirror: This option similar to the previous one will offer you safe data-keeping from a hard drive failure. this option will save your data even if 2 hard drives malfunction but it will require having 5 of them connected in order to be able to choose this option. Parity: Maybe the most popular option among people who want to have 2 or 3 drives merged but do not want to lose too much space of the two-way mirror option. It offers some protection and it does not take so much space as two-way does, let us say it is a kind of win-win situation.

Conclusion

I personally go for simple and have an important backup on optical drives but only for reason I could use more space, know that this way is requiring from me to always have a backup in optical media and that I will need to restore all of it back if even one HDD fails which could take time. But if this way is ok with you, go for it, you will have more space to use.
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Fix update failed to install error 0xca00a000
This post will show you how to fix the Windows update error 0xca00a000 which you can encounter during the installation of Windows updates. Here’s the full error message of this Windows Update error:
“Updates failed There were problems installing some updates, but we’ll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: 2018-07 Cumulative Update for Windows 10 Version 1803 for x64-based Systems (KB4345421) – Error 0xca00a000”
This kind of Windows Update error pops up when Windows has missed installing one of the cumulative updates needed or when there is some problem with the driver that won’t let the installation of the updates push through. There are also instances when the system files are modified with incorrect permission that may result in the Windows update error 0xca00a000. Thus, you need to fix the trusted installer permission as well as resolve the issue with the driver. To do these things, you need to follow the options laid out below.

Option 1 – Run the Windows Module Installer

The Windows Module Installer is a built-in service in the Windows operating system that could help you resolve the Windows update error 0xca00a000. You need to make sure that this service is Started and that its Startup type is set to Automatic – you can do this via Services Manager or by executing the command given below in an elevated Command Prompt.
  • Tap the Win + R keys to open the Run dialog box.
  • Then type “command prompt” in the field and hit Enter to open Command Prompt.
  • And in the elevated Command Prompt type in the following command and hit Enter:
SC config trustedinstaller start=auto
  • After executing the command successfully, you should see the “[SC] ChangeServiceConfig SUCCESS” message on the Command Prompt window.

Option 2 – Try manually installing the updates

As mentioned, the error might be because Windows missed installing a particular update which is why you are not able to proceed with the current update. So to resolve the issue, you need to install the update that wasn’t installed by downloading it from the Microsoft Update Catalog website. You also have to make sure that you didn’t turn off the Windows update or have it delayed.

Option 3 – Delete the files from the Software Distribution folder

The Software Distribution folder in the Windows operating system is a folder that can be found in the Windows directory and is used to store files temporarily which might be required to install the Windows Update on your PC. Thus, it is required by the Windows Update and maintained by WUAgent. A lot of users tried deleting the files in this folder to fix the problem and so far it has worked. Like them, you can try clearing the Windows Update cache by simply deleting the contents of the folder named “SoftwareDistribution” since Windows apparently can’t clear and re-download the update contents once they are corrupted. Thus, deleting the contents of this folder will make Windows download the contents again which will fix the problem. To do that, follow the steps below.
  • Open the WinX Menu.
  • From there, open Command Prompt as admin.
  • Then type in the following command – don’t forget to hit Enter right after typing each one of them.
net stop wuauserv net stop bits
  • After entering these commands, it will stop the Windows Update Service and the Background Intelligent Transfer Service.
  • Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.
  • Once all the contents in the Software Distribution folder are deleted, restart your PC and then go back to Command Prompt and input the following commands again.
net start wuauserv net start bits
Since the folder has already been flushed, it will be populated afresh the instant your restart your computer and open Windows Update.
  • Now Open Settings and check for Windows Updates. Windows 10 should begin the download right away.

Option 4 – Install the updates in a Clean Boot State

You might want to try putting your computer in a Clean Boot state and then install Windows Updates again without any trouble. During this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.
  • Log onto your PC as an administrator.
  • Type in MSConfig in the Start Search to open the System Configuration utility.
  • From there, go to the General tab and click “Selective startup”.
  • Clear the “Load Startup items” checkbox and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
  • Next, click the Services tab and select the “Hide All Microsoft Services” checkbox.
  • Click Disable all.
  • Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
  • After that, try to install the Windows Updates or upgrade again.

Option 5 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter could also help you resolve the Windows update error 0xca00a000. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 6 – Run Microsoft’s online troubleshooter

Running Microsoft’s online troubleshooter might also help you fix the Windows update error 0xca00a000. This online troubleshooter is known to help in fixing Windows Update errors, it scans your computer for issues that might be causing the problem and then fixes them automatically.
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Fix 0x80070037: The specified network ...
If you are trying to copy a file but suddenly encountered an error message saying, “An unexpected error is keeping you from copying the file”, then you’ve come to the right place as this post will help you resolve the problem. This error comes along with another message that states, “Error 0x80070037: The specified network resource or device is no longer available”. This kind of error occurs when the power supply to the external device is weak and causes the device to be disconnecting and reconnecting consistently. To fix this problem, you need to check out the potential fixes provided below.

Option 1 – Try to physically check the USB ports

You need to check the USB ports as there could be some ports that are loose or damaged physically which affects the overall performance of the port. You could also try to change the USB port since modern computers have a variety of USB ports. So if your USB drive supports USB 3.0 or 3.1, make sure that you plug it inside a USB 3.0 or 3.1 ports. If you’re not sure which port, just keep in mind that the USB 3 port is usually blue or you can also use your computer’s documentation or manual as a reference to locate it.

Option 2 – Check the connected cables physically

Aside from the USB ports, you also have to check the physical status of the connected cables because if there are damaged ones, just like with USB ports, it would also affect the overall connectivity of the device with the computer. So if you notice some irregularities in the connecting cable physically, you might have to buy another one and replace it and then see if it fixes the problem or not.

Option 3 – Update or reinstall the Universal Serial Bus Controller driver

Since it could be a driver issue, you can try to update or reinstall the Universal Serial Bus Controller drivers using the Device Manager. Refer to the following steps:
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  • Then click on the “Device Manager” from the search results to open it.
  • From there, look for the “Universal Serial Bus controllers” option and then right-click on each one of the USB drivers and select the Update Driver from the menu.
Note: If it is a regular USB drive, then it will be listed as a USB Mass Storage Device but if you have a USB 3.0 device, then look for a USB 3.0 Extensible Host Controller.
  • Restart your PC and then click the “Search automatically for updated driver software” option.
Note: If updating the USB Controller drivers didn’t work, you can try to reinstall them instead.

Option 4 – Try connecting to a slower USB port

If connecting your device to USB 3.0 or 3.1 ports didn’t work, you might want to try connecting it to a slower USB port this time. There are times when the device is not capable of supporting the higher power supply from a USB 3.0 or 3.1 port which is why the weak circuits do not work properly. Thus, try connecting your device to a USB 2.0 port and check if your device is now working.

Option 5 – Try to turn off the Power Saving option

You could also try to turn off the Power Saving option to resolve the problem. All you have to do is switch to Power Management after you select the Properties of the USB device and from there, uncheck the “Allow the computer to turn off the device to save power” option. On the other hand, if you are using a laptop and did not use the USB device for a long time, then it could be powered off. This will ensure that the system does not turn off the USB device.

Option 6 – Try to connect your device to another computer

It is also possible that your computer does not support your device. To check that possibility, you can try connecting your device to a different computer and see if it is working without any issues. If it is, then you need to get another device that’s compatible with your computer.

Option 7 – Try to use a different device

You could also try using a different device and connect it to your computer. This will help you figure out if your device is damaged or not. So if the other device you connected is working just fine, then you might have to replace your device with a new one or consult an expert and have it repaired if possible.

Option 8 – Run the Hardware and Devices Troubleshooters

  • The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
  • After opening Settings, look for the Update and Security option and select it.
  • From there, go to the Troubleshoot option located on the left-hand side of the list.
  • Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
  • After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.
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How to Fix Windows 10 Error 0x80070490

Error Code 0x80070490 - What is it?

When downloading a Windows update, it is important to remember that these updates are what keeps your computer safe. Some users have reported seeing error code 0x80070490 when allowing updates for their Windows PC. This error code may appear when the user is trying to connect to the update site for Windows and maybe a result of a corrupted CBS manifest. Having this error code will not only stop the update of the system, but it will also certainly halt any work being done with the computer. Quite a few Windows users have written in complaints about this error while updating from any prior Windows update to Windows 10.

Common symptoms include:

  • While a user is performing the updates, the Windows computer will stop running the updates, and it will show the error code 0x80070490.
  • Windows updates will not install any new features and will not install security patches.
  • The computer will not continue with the Windows update, and it may revert back to the previous state that the computer was in, prior to attempting the updates.

Error Causes

There is not a lot known about what exactly causes the error code 0x80070490, but it is something critical that makes Windows abruptly stop its updates. It could be caused by a simple glitch in the computer system, or it could be caused by a larger problem. One thought is that the CBS (Component-Based Servicing) manifest can be corrupt. Another thought is that the computer's anti-virus software may be interfering with the computer's ability to perform the necessary updates.

Further Information and Manual Repair

There is very little information known about error code 0x80070490 and why it exists, but there are a few methods in which to correct it. Users should be careful when trying to fix this error themselves. If the user feels that the methods are too complicated or they are uncomfortable taking it on themselves, they should contact a Windows repair technician to fix the problem. Not all methods listed will suit the user's needs, but it is dependent upon the problem at hand as to which method will be the best fit to fix the error code. If these steps are taken and the error is not corrected, it is vital to contact the Windows repair technician.

Method One: Creating a new local account

Create a new local account on the computer, and allow administrator privileges on it. Next, move all of your documents and personal files to the new account. Delete the old account (you will no longer be using this) and switch over to the new one. After switching to the new local account, add the Microsoft account to it.

Method Two: Delete user ID, Store cache from the registry

  • You will need to open the Registry Editor. Do this by pressing the Windows Key and R, then typing in “Regedit”. After this is typed in, press Enter or click the OK button to start the registry editor.
  • When this starts, you will need to navigate all the way to the following key on the left pane:
  • HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionAppxAppxAllUserStore After this, find the key that is similar to this: S-1-5-21-1505978256-3813739684-4272618129-1016
  • NOTE: this is just an example. The keys will be in a similar format but will not look exactly like this.
  • Select all the keys that look like this, and then delete them. After these keys are deleted, close the Registry Editor and restart the computer.

Method Three: Check to see if BITS, MSI Installer, Cryptographic, and Windows Update Services are running

Press the Windows key and R. Then, type in services.msc. After the Services window starts up, find the following services:  BITS, MSI Installer, Cryptographic, and Windows Update Services. When these services are found, make sure that they are up and running. If one or more of these services is not running, make sure that they are started. To do this, select the service and then click on Start the Service.

Method Four: Windows Update Troubleshooting

Press the Windows key plus W and then type in “troubleshooting”.  Select Troubleshooting. On the top left corner, select View All. Click on Windows Update troubleshooter. After this, follow the on-screen instructions in order to run the troubleshooter. After the troubleshooter has run, the issue should be fixed.

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Many of us are taking the google search engine for granted and it is no true that it has crawled in almost every spore of our digital lives but if we wanted a little more privacy? Do we have options or we are destined to use google and send our information to this company. What if we really wanted that our searches are well safe, secure, and private? We could try other search engines like BING but since BING belongs to Microsoft we would exchange only one company for another without making any progress in the privacy battle. Enter DuckDuckGo. DuckDuckGo is a privacy-focused search engine that’s been online since 2008. Find websites, maps, videos, news, and more without tracking your searches and serving you targetted ads. It took DUckDuckGo as you can tell sometimes to gain ground and to be recognized but finally, it got the attention it deserves. Its big breakthrough happened in September of 2014 when Apple offered it as a default search engine in Safari and since it has gained more and more ground. It seems people care about their privacy after all. Since then DuckDuckGo has been gaining ground and all the major browsers have integrated it as an option for a default search engine. In this article, we will show you how to switch to DuckDuckGo and set it as your preferred search engine in all major browsers.
  1. Google Chrome

    Launch Chrome and click on the three dots in the upper right. Choose settings. Choose Search engine in the list on the left of the screen. Click on the drop-down box next to Search engine used in the address bar and choose DuckDuckGo.
  2. Mozilla Firefox

    Launch Firefox, click on the three lines hamburger menu icon in the top-right corner of the window. Click on Preferences. Click on Search in the menu to the left of the screen. Under Default Search Engine, click the drop-down box and choose DuckDuckGo.
  3. Microsoft Edge

    Click on the three dots menu button in the top-right corner of the window Then select Settings. Click on Privacy, Search and Services in the menu that appears on the left Scroll down to the Services menu and choose Address bar and search. Click the dropdown menu next to Search engine used in the address bar and choose DuckDuckGo.
  4. Apple Safari

    Click Safari in the menu bar at the top of the screen Then click Preferences. You can also use the Command+, shortcut to quickly bring up Safari’s Preferences. Click on the Search tab, then choose DuckDuckGo under the Search engine drop-down box.
  5. Opera

    Click on the Settings cog button in the sidebar on the left of the screen. Under Basic settings scroll down until you see Search engine and a drop-down box. Select DuckDuckGo from the list.
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Gaming vs Regular headset comparison

Regular and gaming headphones have many differences between them and not knowing what they are can lead you to get yourself the wrong one. In this article, our goal is to analyze the differences between them so you can choose the right one for you.

headphone

Price

One thing that goes in both worlds is that the cheapest models on both sides are not really worth the purchase since both the quality and longevity will be very low. If we compare high-end models, regular headphones are far far more expensive than gaming ones. Hi-end gaming models can go as far as 400$, perhaps a little more but hi-end audio regular headphones are going even for over 2000$.

If we compare same-price headphones generally regular ones will offer you a little better sound quality but gaming headphones will offer some features such as positional audio that regular ones do not have.

Surround sound and positional audio

One of the main advantages of gaming headsets is positional audio and true surround sound. this technology is built-in so you can hear more clearly where your enemy is coming from that is a big help in competitive games. This is achieved by positioning multiple speakers in various positions and angles inside them. Each speaker has a different sound channel that is mixed with another speaker in order to provide you with a full surround experience.

Regular headphones have typically one or two speakers on both sides aimed at the same angle and can not offer precise surround or positional audio.

Noise cancellation

Both gaming and hi-fi headphones offer some sort of noise cancelation to minimize outside noise but if you really want to focus and have good noise cancelation you will have to look out for headphones with active noise cancelation or ANC.

Microphone quality

Let us say this right at the start, most middle and quality regular audio headphones do not have a microphone at all, and ones that might pack one usually have it at a lower quality than gaming ones. This of course makes perfect sense since regular headphones will focus on audio, and gaming ones will focus on playing games where having a good microphone is essential in order to game properly.

Speaker and sound quality

Speaker quality will reflect directly on the sound quality and fidelity. This is where audio regular headphones have an advantage over gaming ones. Since they do not have many small speakers positioned at various angled and instead have just a few, usually 2 or 1 large one, that one is of much better quality and range for audio than a pack of small ones. If you are searching for clarity and quality of the audio itself, especially if you are listening to some FLAC uncompressed music, then regular HiFi ones are a much better choice.

Longevity and durability

Another area where regular ones have an advantage but that is no surprise since their price goes far up compared to gaming ones. Most of the time everything in hi-end audio headphones is made from quality materials and designed to last a long time and therefore advantage. Most of the time gaming headphones will come in plastic versions whereas higher quality audio ones pack a lot of durable metal in frames and in buds making them much more durable. Of course, we are talking here about proper headphone use, not extreme cases of throwing, etc.

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How to Fix Fatal Error c000021a

Fatal Error c000021a - What is it?

Fatal Error c000021a is a type of Windows stop error also known as the blue screen of death (BSoD) error. When this error occurs, it causes the computer screen to go blue and locks the user out of the current activity. This error code is fatal and can lead to serious issues like system crashes and freeze. The error code is usually displayed in the following format:
STOP: c000021a {Fatal System Error} The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000034 (0x00000000 0x0000000)

Solution

Restoro box imageError Causes

Fatal Error c000021a occurs when the Windows kernel detects that either Winlogon.exe or Csrss.exe service processes have stopped responding or failed to load.  When this happens the error code pops up on the screen. Nonetheless, this is not the only reason for the occurrence of this error. There are plenty more reasons why Fatal Error c000021a may pop on your computer screen. These include:
  • Missing or corrupt hardware drivers
  • Faulty hardware
  • Windows System Restore failed during the rollback process
  • Malware or viral infection
  • Registry issues
No matter what the reason may be, it is advisable to fix the error right away without any delays. Remember it is a fatal error and can cause a great deal of damage to your PC.

Further Information and Manual Repair

Fatal Error c000021a is a serious PC issue but this does not mean you have to hire an expert to get it fixed. The good news is that this error is actually quite easy to resolve. You don’t have to be a technical whiz or a computer programmer to fix Fatal Error c000021a on your PC. Here are some do it yourself methods to fix this error code right away without any hassle: Let’s get started:

Method 1: Update Your PC Drivers

As we mentioned about corrupt or missing drivers can be one of the many reasons for the occurrence of this error. So, check the drivers first. Perform a driver scan and make sure all your drivers are updated.

Method 2: Perform a Windows System Restore

To do this, first launch Task Manager by pressing CTRL+SHIFT+ESC on your keyboard. Now click on the application tab and then click ‘New Task’ then browse. After that, go to C:\Windows\System32\Restore  folder and then double click the rstrui.exe file. This will help start system restoration. Your computer will reboot during the process and hopefully, the error will be resolved. Nonetheless, if the error still persists then try methods 3 and 4.

Method 3: Scan for Viruses

Sometimes Fatal Error c000021a may also occur due to malware infection. Your PC may be affected by viruses hidden in different locations without you knowing about it. Therefore to resolve this error, it is recommended to run an antivirus and scan for viruses. If detected, remove them right away to fix the error code.

Method 4: Repair the Registry

Another method to resolve Fatal Error c000021a code on your system is to repair the registry. The registry stores all the information and activities performed on the system. If it is not cleaned frequently, it gets loaded with too many files unnecessary and obsolete files like the junk files, cookies, internet history and temporary files which corrupts and damages the registry thereby generating blue screen of death error codes like Fatal Error c000021a. Though you can repair the registry manually it can be both time-consuming and slightly difficult especially if you are not a computer programmer. Therefore it is advisable to download a registry cleaner to fix it right away.

Automatic Repair with Restoro.

Whether the Fatal Error c000021a code occurs due to viral infection or registry issues, download Restoro. This is a next-generation, advanced, and multi-functional PC Fixer. This software is deployed with multiple utilities such as a powerful registry cleaner, an antivirus, a system optimizer, and more. The registry cleaner scans the entire PC and detects all types of registry issues at once. It cleans the registry, wipes out all the unnecessary files, and restores the registry back to normal. Simultaneously, the antivirus embedded in this software detects all types of viruses including malware, adware, spyware and Trojans and removes them in seconds. The system optimizer feature ensures the speed and performance of your PC are not compromised during the repairing process. It ensures your PC works at its optimal speed. Restoro is a one-stop solution for all your PC needs. It has a user-friendly interface making it easy for all levels of users to work around. It is compatible with all Windows versions Click here to download Restoro and resolve the Fatal Error c000021a code on your PC today!
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Fix Windows Upgrade Error 0x800701E3
There are various components that take part during a Windows Upgrade process such as the CPU, Disk, Network, and many more. This is why the process of upgrading your Windows 10 computer can be quite complex and due to its complexity, there are times when you might encounter some errors like the Windows Upgrade error 0x800701E3. If you encounter this kind of error then it has something to do with the “disk” part of the whole upgrade process which could be due to a conflict with the storage of your Windows 10 computer. When you receive this error, you will see the following error message on your screen:
“Windows cannot install required files. Make sure all files required for installation are available and restart the installation. Error code: 0x800701e3.”
To fix this Windows Upgrade error, here are some suggestions that might help.

Option 1 – Delete Files from Software Distribution Folder & Catroot2 folders

The downloaded Windows Updates are placed in a folder called “SoftwareDistribution”. The files downloaded in this folder are automatically deleted once the installation is completed. However, if the files are not clean up or if the installation is still pending, you can delete all the files in this folder after you pause the Windows Update service. For complete instructions, refer to the steps below.
  • Open the WinX Menu.
  • From there, open Command Prompt as admin.
  • Then type in the following command – don’t forget to hit Enter right after typing each one of them.
net stop wuauserv net start cryptSvc net start bits net start msiserver
  • After entering these commands, it will stop the Windows Update Service, Background Intelligent Transfer Service (BITS), Cryptographic, and the MSI Installer
  • Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.
After resetting the SoftwareDistribution folder, you need to reset the Catroot2 folder to restart the services you just stopped. To do that, follow these steps:
  • Type each one of the following commands.
net start wuauserv net start cryptSvc net start bits net start msiserver
  • After that, exit Command Prompt and restart your computer, and then try to run Windows Update once more.

Option 2 – Try running the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the Windows Upgrade problem. 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 3 – Run the System File Checker Scan

System File Checker or 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.
  • Restart your computer.

Option 4 – Try running the ChkDsk utility

You can also run the ChkDsk utility to fix the Windows Upgrade error 0x800701E3.
  • First, open This PC and right-click on your operating system partition for Windows.
  • Next, click on Properties and navigate to the Tools tab.
  • Then click on Check under the Error Checking section.
  • After that, a new mini window will be opened and from there click on Scan drive and let it scan your disk drive partition for any errors and then restart your computer.

Option 5 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter is one of the things you can first check out as it is known to automatically resolve any Windows Update or upgrade errors like error code 0x800701E3. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

Option 6 – Run Microsoft’s online troubleshooter

Running Microsoft’s online troubleshooter might also help you fix the Windows Upgrade error code 0x800701E3. This online troubleshooter is known to help in fixing Windows Update errors, it scans your computer for issues that might be causing the problem and then fixes them automatically.
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How to Fix Registry Error Code 19

What is the Registry Error Code 19?

Code 19 is a Windows PC error code that indicates a damaged or corrupt registry. This code usually appears when trying to start a connected device, the DVD/ CD ROM drive. Code 19 is a type of Device Manager Error code. When you experience Code 19, the error message is displayed on your Windows screen in either of the following formats:

"Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. To fix this problem you should uninstall and then reinstall the hardware device. (Code 19)"

"Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. To fix this problem you can first try running a Troubleshooting Wizard. If that does not work, you should uninstall and then reinstall the hardware device. (Code 19)"

You might encounter other error messages such as error code 42.

Error Causes

Typically the underlying cause of this error code is problems in the registry. The error should be fixed timely without any delays before the damage sets in. Registry issues are critical PC errors. If not resolved it can lead to system freeze, crash, and failure. You are most likely to lose all your important data.

Further Information and Manual Repair

If you have come across this error on your computer, you don’t need to panic. Though this is a serious issue the good news is that it is easy to resolve. You don’t have to be a computer programmer, technically sound or hire a technician to fix the error on your system. Here are a couple of ways to work your way out of this problem:

1. Uninstall and then Reinstall the  DVD/CD ROM Drive

For this here’s what you need to do: simply click on the start menu, and type Device Manager in the search box, and press enter. When the device manager window opens locate the DVD/CD ROM drives. Click on the + sign to expand it. Now right click on the DVD drive click uninstall. After doing this, restart your PC. On the restart, Windows should automatically detect and reinstall the DVD driver. Once the driver installation is complete now see if the DVD drive works. If the error still appears, then you need to repair the registry by deleting the corrupt registry entries. You can download drivers automatically by using a tool such as Restoro.

2. Trouble Shooting Method to Delete the Corrupt Registry Entries

To remove the corrupt registry entries, go to Start and select Run. Type ‘Regedit and press enter to open the registry editor windows. To continue you may be asked to enter the administrator password, insert it to proceed. Now the registry window will be displayed. Here locate the registry key HKEY_LOCAL_MACHINE, then navigate to the following sub registry key HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E965-E325-11CE-BFC1-08002BE10318} Here you will see the upper filters registry entry in the right pane. Right-click on the upper filter and select delete. You will be prompted for the confirmation for deletion. Click on the yes tab to confirm. Exit the editor and restart your computer. If you are not technically sound, this may be a little confusing for you, and besides it does not guarantee to resolve all the registry issues on your PC so chances are that Code 19 error may reappear in a short time. To resolve registry issues for the longest time and ensure that errors like Code 19 don’t pop up every now and then, you need to perform proper and in-depth registry cleaning. For this, it is advisable to download Restoro.
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How to install and remove fonts in Windows 10
Once a tedious and unfriendly task of installing fonts has been severely made easier and more user-friendly. As technology advances daily so do some tasks. One of these tasks which today look unnecessarily complicated is fonts installation in Windows. What was once complicated navigation to control panel with an administrative account, today is two-click with the mouse anywhere, well anywhere on your hard drive, but still a great improvement nonetheless. Ok, so you have found cool new font which you like very much and you are eager to try it out, but how do you install it in Windows so your other software can find it and use it? The task is incredibly easy, let's presume that you have downloaded desired font or fonts to your hard drive from the internet, they are nicely placed in a folder, all you have to do is select which one you would like to install, right-click on any one selected and click on install. That's it, that is all that you need to do. Now in order to remove fonts first, you will have to go to the folder which has all fonts installed in the system. The location of this folder is conveniently enough c:\Windows\Fonts. In there select all fonts that you would like to uninstall from the system and simply delete them, that's it.
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