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 GeForce Experience error code 0x0001
The GeForce Experience on graphics card manufactured by NVIDIA is an advantage for users who loves gaming as it makes enhances users’ gaming experience. However, there are times when it may also encounter some problems. One of the problems users may encounter is the error code 0x0001. This kind of error occurs when users open the NVIDIA GeForce Experience utility. Here’s the full content of the error message:
“Something went wrong, try rebooting your PC and then launch GeForce Experience, ERROR CODE: 0x0001.”
Errors like this one diminish the overall experience of users due to the fact that when this error occurs, the NVIDIA GeForce experience wouldn’t even start which renders its features useless. There are several potential fixes you can check out to resolve this error but before you check them out, you can try to restart your computer first and then open the NVIDIA GeForce Experience once again, if you still encounter the error, then you need to check the NVIDIA Display Driver Services or update your NVIDIA display drivers or switch to the BETA release. You could also try to install and reinstall the NVIDIA display drivers or perform System Restore and see if it helps. For detailed instructions, follow the given options below.

Option 1 – Try to check the NVIDIA Display driver services

  • Tap the Win + R keys to open Run and then type “services.msc” in the field and hit Enter to open the Services Manager.
  • From there, look for the following NVIDIA services and make sure that their Startup types are as follows:
    • NVIDIA Display Container LS – Automatic
    • NVIDIA NetworkService Container – Manual
    • NVIDIA LocalSystem Container – Automatic
    • NVIDIA LocalSystem Container – Automatic
    • NVIDIA GeForce Experience Service – Automatic (Delayed Start)
    • NVIDIA Geforce Experience Backend Service – Automatic (Delayed Start)
    • NVIDIA Telemetry Container service – Automatic
  • Next, double click on each one of the services and go to Properties. Here, check if the service is running. If it’s not, just click on the Start button. On the other hand, if they’re already running, just click on Stop and then click on Start again.

Option 2 – Try to update the NVIDIA Display drivers

You can also try updating the NVIDIA display drivers as it might help in fixing the error. To update them, follow the steps below.
  • Tap the Win + R keys to open the Run dialog box.
  • Next type in “dxdiag” in the field and click OK or hit Enter to open the DirectX Diagnostic Tool.
  • From there, you can see what type of NVIDIA graphics card that your system is on.
  • Take note of your graphics card information and then look for the best drivers for your operating system. Once you’ve downloaded and installed the file, restart your PC.
Note: If you want to try out the beta release of the NVIDIA display drivers, click on this link. Beware though that the beta software is unstable and buggy and may cause some different bugs.

Option 3 – Try to roll back the driver to the previous version

If updating the NVIDIA display drivers didn’t work for you, then it’s time to roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh.
  • 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 NVIDIA Drivers and expand it.
  • Next, select the driver entries that are labeled appropriately.
  • 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 the NVIDIA Drivers.
  • Now restart your computer to successfully apply the changes made.

Option 4 – Try to run System Restore

You could also run System Restore as it might help fix the error code 0x0001 in NVIDIA GeForce Experience.
  • 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 then check if the error code 0x0001 in GeForce Experience is now fixed.

Option 5 – Do a clean install on the NVIDIA driver

  • Before you do a clean install on the NVIDIA driver, you have to download the latest version of the Display Driver first.
  • Boot your Windows 10 PC into Safe Mode.
  • After that, double click on the executable file of the Display Driver Uninstaller to run and install it.
  • After the installation, open the program. Once you do, you should see the following window on your screen:
  • In the program window, click on the “Clean and restart” button.
  • After your PC has rebooted, download the NVIDIA drivers.
  • Then select your Product Type, Product Series, Product, Operating System, and Language appropriate for your hardware specifications as well as personal requirements.
  • Next, click on Search to display the latest available driver as per the information you entered.
  • And click on Agree and Download to start downloading the latest driver executable file.
  • Run the executable file after you finished downloading the latest driver executable file and then select Custom and click on Next.
  • Afterward, select “Clean Install” and proceed. Doing so would install the latest driver on your PC.
  • Restart your PC and check if the error’s now fixed. If not, you can try installing an older version of the driver instead.
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How to share games on Steam with someone
Sharing is caring, an old saying says. I completely agree and that is reason enough for this article filled with sharing goodness. Holidays are coming and I hope that the holiday spirit is strong with you, that you will spend them in peace and with loved ones. All that being said wouldn’t it be great if you can spend some joy with close ones and share some of your games on their account so they can enjoy them as well? steam libraryWell, you can and it is not complicated as well. Follow this easy guide to see how can you get someone’s account up and running with some of your games.

The steam Family sharing feature

The family Sharing feature inside Steam will let you share your games to another account so owners of that account can play games that you have purchased without the need to buy themselves. You can allow up to 5 accounts and 10 devices to play your library games, and owners of these accounts will have their own achievements. Be aware that enabling this option will place your entire library on the share, you will not be able to choose which games you would like to share and therefore any kind of parental controls are not applying here. Also know that once the game is running on one device, others will have to wait for one playing to finish before they can get a spin on it. Only the owner of the game can play whenever he wants as a priority but others will have to wait for the game to be not run by someone else.

How to Share Your Game Library

In order to share your game library have a person, you wish to share games with at his device on ready to go and enable steam guard on your account. To enable steam guard login into your account and on the top left corner click on Steam and then on Settings. Inside settings click on the Manage Steam Guard Account Security button. Choose the way of authentication either by mail or steam guard mobile app. Check Get Steam guard codes by email radio button and re-login into account.

Sharing Games on another Steam account

Now that Steam Guard is enabled on the primary account let’s share some games!!! Inside client again, in the top left click on Steam and again on settings. In the left panel choose and click on Family. Inside Family section check box beside Authorize Library Sharing on This Computer. Log out of your account and login into the client user account credentials you wish to share your library with (this is your friend or cousin account, they need to log in to Steam client on your computer but with their credentials). After they have successfully logged in, log them out and re-log with your account again. Now go again into Steam > Family and now you should see an account in the box at the bottom with the user name or your friend or relative. Confirm that this is an account that you wish to share the library with by clicking on the checkbox next to the name. Now let users login into the desired device with their credentials and they will have access to your entire library. Happy gaming!
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6 colors of Western Digital
I must admit that I am a big Western Digital fan, I have been using their hard drives really long time and I must admit that I am very happy with their products. Sometimes they could be a little more expensive than other drives on market but security and performance are on their side. If you ever wanted to purchase Western Digital or WD hard drives or you are considering getting one, no doubt that you have come across their color cryptic line of products. 1TB Hard drive can come in 6 different colors in your search products query and if you are not familiar with the WD color coding of hard drives you might be a little lost as to which one is right for you and what are the differences. This article is made to explain exactly that, what are WD colors representing so you can choose the right one for your needs. Western Digital has decided to use color codes in order to mark their series of disks which means that each color represents different hard drive series and it is made and aimed for different use, we are going to explore in detail each series below:

WD BLUE

Blue series is all around typical hard drive made and meant for daily use in desktop computers for all kinds of tasks. You can use it in casual gaming or for storage, its purpose is tailored for all-around casual daily users.

WD RED

WD Red HDD is designed for NAS and RAID systems. Its purpose is to be turned 24/7 who ever need access to it. Get this series if you need to have constant access to files or if you need a reliable RAID hard drive.

WD GREEN

Green series of the hard drive is manufactured for low power consumption and for storage, they are meant to be used for storage and not accessed regularly.

WD PURPLE

Purple line of hard drive products is designed solely for video surveillance systems. Instead of having a preference on reading data like WD RED, the PURPLE series is given preference on writing, constant writing to be more precise.

WD BLACK

The black series is made for an external storage medium with high performance. Due to the high performance, WD Black hard drives are much popular among photo editors and high-end gamers.

WD GOLD

WD Gold HDD provides a long-term cold storage medium. Therefore, this series of Western Digital hard drives are suitable for data centers. These hard drives can handle many sophisticated systems simultaneously and work well with different servers That's it, I hope that you have now a more clear understanding of the WD color-coding of its hard drive series. As always thank you for reading and I hope you will have a great day. If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.
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Setting up Logitech C922 in Windows 10
Being a streamer altho popular is a very demanding call, there is a lot of technical knowledge involved and one of this knowledge is setting your web camera equipment. On the internet, you can find how to install certain devices and register them in Windows but with little to no information on how to set everything for streaming. In this article, we will try to address as many of this as we can so you can start using your camera right away.

Features of the Logitech C922 Pro Stream Webcam

In the package of your Logitech C922 Pro Stream Webcam, you should have the camera itself with a USB hookup, tripod, and user manual. Tripod, of course, is meant to stabilize the camera for recording using high zoom values so visual shaking of the picture is eliminated. The camera itself captures natural light without any distortion in full HD and if placed on top of the monitor it can accommodate the field of view to capture two people. Also when in a low-light room, autofocus will correct light and it will sharpen an image in order to compensate for lack of light. The camera also features a dual microphone for clarity of sound.

Assembling the Logitech C922 Webcam

Of course, the first thing when the camera is unpacked is to assemble it. Basically, there are two ways for the camera to be assembled:
  1. On top of monitor and
  2. On tripod
The next section will cover both assemblings

Mounting camera on the monitor:

The Logitech C922 Pro Stream Webcam can be used to capture up-close images or video from the top of any computer monitor or TV. To set up your Logitech C922 Webcam on top of a monitor or TV:
  • Completely extend the mounting stand until it reaches the top width of your monitor or TV
  • Turn the bottom piece of the mounting stand, so it matches the angle of the back of your monitor or TV
  • Place the mounting stand on top of your monitor or TV and tighten the bars until they’re flush with each surface
  • Pivot the webcam up, down, or to the sides to center the camera angle
After you have securely mounted the C922 to your monitor or TV, it’s ready to be plugged in and used with any recording application on your computer.

Mounting camera on the tripod

You can set up your Logitech C922 Pro Stream Webcam to record a 78-degree view of a room for presentations or live streams by attaching it to the tripod. To set up your Logitech C922 Webcam with a tripod:
  • Unfold and extend the legs of your tripod
  • Place the webcam on top of the tripod, aligning the swivel bolt with the webcam mounting hole
  • Swivel the bolt by turning a small knob on the tripod
Once you have assembled your Logitech C922 Pro Stream Webcam on your tripod, plug it into your computer and load up your favorite recording application.

How can you use your Logitech C922 Pro Stream Camera?

Altho this camera is designed and built to be used in a live stream environment it can also be used to record video offline to a file. In this next segment, we will explore further applications in which the camera is meant to be used.

Live video

The Logitech C922 Pro Stream Webcam allows content creators to share content in high definition with thousands of viewers in real-time. Stream full 1080p at 30 frames per second and 720p at 60 frames per second live on platforms such as Twitch or YouTube.
  • Stream video games or entertainment in real-time
  • Create live presentations for work, customers, or followers
  • Discuss matters of interest in live talk shows or podcasts
  • Video call family or friends on Skype, Facetime, or Google Hangouts
  • Capture crystal-clear, 78-degree video with the Logitech C922 autofocus lens. With two microphones attached on each end, you can stream any live video with little to no audio drops.

Offline recordings

The Logitech C922 Pro Stream Webcam can be used with desktop recording software to create professional videos or snapshots. After you’ve finished recording, you can edit specific spots in the video and add custom presentation details.
  • Product demonstrations and tutorials
  • Educational or promotional presentations
  • Video game or entertainment videos
  • Personal vlogs
  • Talk shows or podcasts
  • Desktop or laptop technical walkthroughs
  • Complete offline recording in high definition at 1080p. Use QuickTime Player (Mac) or Microsoft Camera App (Windows) to take photos or record videos offline.

Setting up Logitech C922 Pro Stream Camera using XSplit Broadcaster

XSplit Broadcaster offers live stream support for several platforms, which include Facebook Live, YouTube Live, and Twitch. After you hook up your webcam and create profiles for each platform, you can begin a live stream with XSplit Broadcaster.

Twitch Streaming

  • Enable Two-Factor Authentication on Twitch: Navigate to the settings of your profile and the Security and Privacy tab. Before you can start broadcasting with XSplit, you must set up Two-Factor Authentication.
  • Set Up Twitch Streaming Profile in XSplit: In XSplit Broadcaster, navigate to Broadcast > Set up a new output > Twitch. Select an account to authorize with XSplit and proceed.
  • XSplit automatically chooses a resolution to record based on target server connection quality.
  • A settings window opens before you complete the setup, which allows you to customize the server and video recording options. Once you have completed the setup, your Twitch profile is set up in XSplit. You can begin a stream by navigating back to Broadcast and clicking on the new Twitch profile.

YouTube Streaming

  • Enable YouTube Streaming Live: Click on your YouTube profile picture to open a dropdown and click on YouTube Studio Beta.
  • On the left side of the page, navigate to Other features and click on Live events in the dropdown.
  • Click on Enable live streaming to set up live streaming for your YouTube profile.
  • Set Up YouTube Streaming Profile in XSplit: In XSplit Broadcaster, navigate to Broadcast > Set up a new output > YouTube. Select an account to authorize with XSplit and proceed.
  • Once YouTube Live Properties window pops up, click Authorize to connect your Google account. You can also change any settings as needed before you begin a live stream. Once you’re ready to broadcast live with XSplit, navigate back to Broadcast and click your new YouTube Live profile.

Facebook Live Streaming

  • Set Up Facebook Live Streaming Profile in XSplit: In XSplit Broadcaster, navigate to Broadcast > Set up a new output > Facebook Live.
  • A prompt opens in XSplit to log in to your Facebook profile.
  • Log in and set up permissions and posting options as you’d like them to appear whenever you stream live on Facebook. After you’ve completed the permission process, your Facebook Live profile is ready to use in XSplit. You can navigate anytime back to Broadcast and select your new Facebook Live profile in XSplit to begin a live stream.

Using OBS with Logitech C922 Pro Stream Webcam

OBS live streaming application offers high-quality audio and video performance and video capturing in real-time. This application offers full control over every detail and it is a very good choice for both cases.

Setting up Logitech C922 with OBS

  • Add Logitech C922 as a Capture Device: Click the + under the Sources section. Once you are in the drop-menu, select Video Capture Device.
  • When this menu pops up, click Create New and hit OK.
  • From the Device bar, you can select your Logitech C922 as a default Video Capture Device. Set any configurations up how you want them and click OK before exiting.
  • Changing Resolution or Frames Per Second: With OBS open, click on Settings in the bottom-right portion of the screen and then on the Video tab on the next page. Here you can set up the screen resolution, downscale filter, and frames per second defaults for all videos recorded with OBS. Click Apply before exiting.
  • After you’ve finished applying the initial settings, you can begin recording or streaming in the bottom right-hand corner of the main menu.
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How to turn the game mode off in Windows 11
Among other things and innovations, Windows 11 brings to the table is the game mode. The game mode is a system designed to release some resources and optimize your system when Windows 11 detects that you are playing games. It also turns off automatic updates while the game is active. game mode in Windows 11The game mode is active at all times and usually, everything works great but in some instances, it can sadly cause some performance issues. If you are one of these unlucky people where game mode is not working as supposed to do, don’t panic, we have a quick guide for you on how to turn it off.
  1. Press ⊞ WINDOWS + I to open settings
  2. Inside click on Gaming
  3. Select Game mode
  4. Click switch beside Game mode to turn it off
  5. Close settings
Everything will be automatically saved and applied and you should not have any issues from now on. If for any reason you wish to turn game mode back ON, just follow the same steps and turn the switch to ON.
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Disabling the Blur on Login Screen in Windows
You will notice the blurred background on the login screen right away when you start your Windows 10 computer that’s running the v1903 and up. This kind of blurred background is known as “Acrylic Blur Effect on Sign-in Screen”. This new feature delivers a beautiful experience to users by adding more focus to the login screen. However, no matter how nice this feature is and even if it only stays for less than a minute, not all users like it and if you’re one of these users, read on as this post will guide you in disabling the blurred background login screen in your Windows 10 computer. Disabling the blurred background in the login screen can be done in two methods. The first one is via the Registry Editor and the second one is via the Group Policy Editor. Before you proceed, make sure that you are using an admin account and you must create a System Restore point first. Once you have that covered, follow the options provided below.

Option 1 – Disable the Blurred background in the login screen via Registry Editor

  • First, tap the Win + R keys to open the Run dialog box and type “Regedit” in the field, and hit Enter to open the Registry Editor.
  • After that, navigate to this registry path: KEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsSystem
  • Next, right-click on any empty space in the right pane and create a new DWORD (32 bit) and name it as “DisableAcrylicBackgroundOnLogon”.
  • Once you’ve created the DWORD, double click on it and set its value to 1 to disable it and 0 to enable it.
  • After you make the necessary changes, restart your computer. You won’t now see the blurred background on the login screen.
Note: No matter what option you select to change the background, it will stay blurred when you click on the login button. At the time of writing, there is no way to disable this feature in the Personalization section so the Registry Editor will have to suffice for now.

Option 2 – Disable the Blurred background in the login screen via Group Policy Editor

  • Tap the Win + R keys to open the Run utility and type “gpedit.msc” in the field and tap Enter to open the Group Policy Editor.
  • After that, navigate to this policy setting: Computer ConfigurationAdministrative TemplatesSystemLogon
  • From there, double click on the “Show clear logon background settings” and since its default value is “Not configured”, set it to “Disabled”. You will see the following description under this setting:
    • “This policy setting disables the acrylic blur effect on the logon background image.”
    • “If you enable this policy, the logon background image shows without blur.”
  • Now click on OK and then check the login screen.
Note: If you don’t configure or if you disable this policy, the logon background image adopts the acrylic blur effect. However, if it didn’t work, you have to restart your computer and then check.
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How to Fix Windows 8 Error 0x80070490

Error Code  0x80070490 - What is it?

Error code 0x80070490 occurs in versions of Windows including Windows 8 or 8.1 and Windows 7 or Windows Vista. This error often arises when users attempt to install updates via Windows Update or Microsoft Update.

The main reason for the error relates to the Component-Based Servicing (CBS) manifest which has become damaged. When the error occurs, the Windows device is unable to successfully install updates.

Solution

Restoro box imageError Causes

Error code 0x80070490 might appear for various reasons but is most prominent in the following cases:

  • Attempts to install Windows 8 or 8.1
  • A corrupted Component-Based Servicing (CBS)

Further Information and Manual Repair

The solutions for error code 0x80070490 vary so users may need to attempt each solution to find the best results.

  1. Repair Corrupted Windows Files with System File Checker

The System File Checker (SFC.exe) is a Windows-based utility that enables users to check and repair corrupted or damaged system files. It can also restore missing systems files which can be the cause of errors such as error code 0x80070490.

To repair files, begin scan by swiping the right edge of the screen then opening the search box. Type Command Prompt, right-click this option, then select Run as Administrator. Once the scan begins, wait for the process to be completed then restart your device. Check if the error is resolved by reattempting updates. If error code 0x80070490 in Windows 8 or 8.1 persists on your device, proceed to the solution below.

  1. Perform Clean Boot

A clean boot is one of the best ways to reduce conflict among files – an issue that may arise whenever users update, install or run programs on their Windows device.

To run a clean boot, your device reboots using limited drives and programs. The process allows you to identify which conflict among programs is causing errors on your Windows device.

You can access the clean boot tool by entering msconfig in the search box. Select Services, then System Configuration. Check the Hide all Microsoft services checkbox then select Disable all. Next, go to the Startup tab, click and open Task Manager. After selecting the Startup tab, make sure you right-click each startup program. Click Disable from the context menu then close Task Manager when done. Select OK on the System Configuration menu then restart your machine to clean boot Windows 8 or 8.1.

If the clean boot successfully identifies and resolves issues with corrupted files, you will be able to access updates using Windows Update or Microsoft Update. Error code 0x80070490 will no longer occur. But if that proves unsuccessful, other options are available below including running Windows Update Troubleshooter.

  1. Run Windows Update Troubleshooter

This method can provide a simple solution for users as it verifies whether your Internet connection, network adapter and Windows Update services are functioning properly. However, if you are uncertain as to whether you will be able to troubleshoot, seek assistance from a qualified Microsoft technician.

To run Windows Update Troubleshooter, simply download from Microsoft’s website. Be sure you are downloading the tool recommended for your operating system, in this case Windows 8 or 8.1. After you download Windows Update Troubleshooter, run it to enable the tool to check for and resolve update issues on your device.

  1. Use DSIM or System Update Readiness Tool

The System Readiness Tool or DSIM is another method you can use to correct issues related to error code 0x80070490. This tool checks problems on your system that might prevent your computer from performing Windows updates including issues related to damaged system files.

Once you download and install this tool, it will be able to run automatically. The process may be technical, however, requiring specialized knowledge to successfully download and run the tool. Consider getting assistance from an IT professional in this case. Also, check Microsoft's online resources to download the tool.

  1. Use an Automated Tool

Having an automated tool at hand will enable users to always be prepared. Download a powerful automated utility tool to provide solutions whenever error codes or other problems affect your Windows 8 device.

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Firewall is preventing or blocking connections
As you know, the Windows Firewall is designed not just to protect your computer from viruses and malware, and other security threats but it’s also designed to block any program from accessing the internet. Users are given the option to block both inbound and outbound traffic for any apps on their computers. However, this kind of option can often lead to not being able to access the internet. In such cases, when you try to run the Windows Firewall Troubleshooter or the Windows Network Diagnostic troubleshooter, it will throw an error message that says, “Windows Firewall is preventing connections to your computer. The Windows Firewall rule HSS DNS Leak Rule may be blocking your connection”. If you are in this kind of scenario, then you’ve come to the right place as this post will guide you on how exactly you can fix this error. When you encounter this kind of error, there are several options you can check out to fix it. You can try to allow an app or feature through the Windows Firewall or uncheck the HSS DNS leak rule in both private and public. For more details, refer to the suggestions provided below.

Option 1 – Try to allow an app or feature through Windows Firewall

The first thing you can do to get rid of the error is to allow a feature or app through the Windows Firewall. To do this, follow these steps:
  • Open the Windows Defender Security Center.
  • From there, select the Firewall and Network Protection option.
  • Next, click on the “Allow an app through firewall” option and then click on the “Change Settings” button and make sure that you have administrative privileges.
  • After that, select the app or feature you want to allow through the Firewall from the menu. You also have the option to manually add the app by using the “Add an App” option.
  • Then select the between the type of network an app can access such as:
    • Private Network will allow the app to connect to the internet only at home or work.
    • Public Network will allow the app to connect to the internet from anywhere, including Public WiFi hotspots.
  • Once done, restart your computer and see if it fixed the error or not.

Option 2 – Try to uncheck the HSS DNS leak rule in both private and public

The next thing you can do to fix the error is to uncheck the HSS DNS leak rule in both private and public. You can do this by following these steps:
  • Open the Windows Defender Security Center.
  • From there, select the Firewall and Network Protection option.
  • After that, click on the “Allow an app through firewall” option and then click on the “Change Settings” button and make sure that you have administrative privileges.
  • Next, scroll down until you see the HSS DNS leak rule in both private and public option and then uncheck it.
  • Now restart your computer and check if the error is now gone.
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How to Fix Black Screen During Installation Windows 10

Black Screen During Installation - What Is It?

Many are upgrading their OS to Windows 10, however, it’s not always smooth sailing because users have been reportedly experiencing different bugs including Black Screen after a successful update.

One common issue in installing Windows 10 is the appearance of a black screen after installation. This usually occurs when the user restarts the computer. Initially, there will be a black screen only appearing on the monitor. There are also cases where a mouse cursor is present, while some cases have no cursor at all.

Not only that, it seemed that you’ve lost all your desktop icons when experiencing this bug.

Solution

Restoro box imageError Causes

Just like the other bugs experienced by Windows 10 users, booting to a black screen has reasons. Before you even try to look for the solution, you first have to determine the cause of the error, in this case, the error would be black screen when booting.

  • Error on external devices such as printer or mouse.
  • Having outdated display/video drivers that normally result in black screen when OS is updated.
If error messages are left unsolved, you may encounter other Windows 10 related issues such as error code 0xc0000142

Further Information and Manual Repair

Before you even think of upgrading your OS to Windows 10, you need to know that there are specific system requirements and specifications to be able to successfully update your operating system.

  • Minimum of 1 gigahertz (GHz) Processor
  • Either 1 (GB) (32-bit) or 2 GB (64-bit) Ram
  • You need at least 16 GB of free hard disk space
  • A Microsoft DirectX 9 graphics device or later with WDDM 1.0 driver graphics card
  • 800 x 600 display
  • A Microsoft account and Internet access.

There are more system requirements in order to use other certain Windows 10 features, but we’ll focus on solving your black screen problem in this article.

IMPORTANT NOTE: While it’s possible that you’ll be able to find the solution for your black screen during Windows 10 update, contacting the service of a professional technician or using an automated tool is advisable if you’re not confident in performing the methods to be discussed.

Method 1: Windows 10 DVD Boot

  1. Hit Repair your computer at the Install Now screen.
  2. Press Advanced Options
  3. When you’re in the Advanced Options find Troubleshoot and click it.
  4. Proceed to pressing Startup Repair
  5. Simply follow the instructions of the screen and check if that helps solve the black screen problem.

Method 2: Safe Mode from Windows 10 DVD Boot

  1. Go to Install Now screen
  2. Hit Repair your computer button
  3. Go to Advanced Options
  4. Click Safe Mode option

There’s a chance that you’ll get an error prompt saying, “installation cannot be completed in safe mode.” If this happens, simply press Shift + F10. This command will redirect you to the Command Prompt. You just open Device Manager by keying in devmgmt.msc then disable the display adapters, now check if you’ll be able to successfully boot in normal mode.

This process will normally allow you to complete the Windows 10 installation, if that’s the case you can just update the display adapter drivers from the manufacturer’s website. Restart your computer and see if this solves the problem.

Method 3: Driver Roll Back

  1. Hit Windows Key + X then press the Device Manager
  2. Expand the Display Adapters option
  3. Right-click the listed Display Adapter and press on properties
  4. Find the Driver Tab and click on it, then press Roll Back Driver

Do take note, however, that the Roll Back Driver option is not available if there was no previous version installed.

Method 4: Check External Devices

Since one common cause of black screen during a Windows 10 update is the external devices you use in your computer, you might want to consider these steps as well.

  1. Simply unplug all of the external devices you currently use
  2. Restart your computer
  3. If in case this solved your black screen problem, carefully plug back the devices one at a time to determine which of the device is the culprit.
  4. Update the drivers for the outdated hardware using a reliable third party tool.

Method 5: Fast Startup Disabled

Some Windows 10 users had success in solving their black screen problem by disabling the fast startup.

  1. Go to the Control Panel, find Power Options and press “Choose what the power button does,” which is located in the left pane of the panel.
  2. Hit the “Change settings that are currently unavailable.”
  3. Make sure to unmark the checkbox button saying, “Turn on fast startup.”
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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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