A Quick Guide to Fixing Error 2

As you know, Microsoft Store is the ultimate source of applications for Windows 10 devices and it’s turning to be the hub for various applications. In fact, aside from applications, it has also become a source for movies, books, TV and even buying hardware directly from Microsoft and many more. Although downloading goes smoothly most of the time, depending on your internet connection, there are also times when you might experience slow download speeds while downloading apps and other things in the Microsoft Store. There are several factors that could be causing this kind of issue. It can be due to the Microsoft Store app itself or it could be enforced speed limiter on the application or it could be due to a corrupted Microsoft Store cache, or it could be due to the Windows Update service running in the background, and so on. To fix this problem, you can try to reset the Microsoft Store cache, or set the bandwidth limit for downloads, or try to re-register the Microsoft Store app via Windows PowerShell. Before you proceed with the troubleshooting options provided below, make sure that your internet connection is stable enough to download apps and games. You also have to check if there is an update or a massive download in progress. Once you have these things covered, follow the given options below.

Option 1 – Try to reset the Microsoft Store cache

Just like browsers, Microsoft Store also caches as you view apps and games so it is most likely that the cache is no longer valid and must be removed. To do so, follow the steps below.

• Right-click on the start button and click on Command Prompt (administrator).
• Next, type in the command, “exe” and tap Enter. Once you do, the command will clear the cache for the Windows Store app.
• Now restart your PC and afterward, try opening Microsoft Store again and then try to install your app or update your computer again.

Option 2 – Try to set the bandwidth limit for downloads

• Tap the Win + I key combination to open the Windows Settings app.
• After that, navigate to Update & security > Windows Update.
• From there, select the Advanced options located on the right-side panel.
• Next, select Delivery Optimization and check the box for “Limit how much bandwidth is used for downloading updates in the background under the Download settings section and then set the slider to 100%.

Option 3 – Try to re-register the Microsoft Store app via Windows PowerShell

• Tap the Win + X key combination or right-click on the Start button and click on the Windows PowerShell (Admin) option.
• If a User Account Control or UAC prompt appears, just click on Yes to proceed and open the Windows PowerShell window.
• Next, type in or copy-paste the following command to re-register the Microsoft Store app and tap Enter:

powershell -ExecutionPolicy Unrestricted Add-AppxPackage -DisableDevelopmentMode -Register $Env:SystemRootWinStoreAppxManifest.xml

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

As you know, Windows operating system comes with tons of features. Some of which are not intended to be used by normal customers or users directly which means that only a small percentage of the huge user base of the operating system leverages the use of such features. However, they’ve added some major value to the feature list of the operating system. You can find these features under the “Turn Windows Features on and off” option. This indicates that if you want to, you can just type in “Turn Windows Features on and off” in the search box and then enable any feature that you want to enable. Aside from that, there are other ways you can disable or enable the optional Windows Features in your Windows 10 computer.

Option 1 – via Control Panel

• Open Control Panel and select Uninstall a Program.
• After that, select the “Turn Windows features On or Off” option on the left side.

Option 2 – via Command Prompt

• Tap the Win + X combination on your keyboard or right-click on the Start button and then click on Command Prompt (Admin). Alternatively, you can also type “cmd” in the Cortana search box and right-click on the Command Prompt icon, and select the “Run as administrator” option.
• If a User Account Control or UAC prompt appears, click on Yes.
• Next, type in the following command to see the list of the available features.

DISM /online /get-features /format:table | more

• Now all you have to do is copy the name of the feature that you want to enable and for you to do that, you need to execute the following command:

DISM /online /enable-feature /featurename:[Enter the name of the feature here] –All

Note: Now if you want to disable a feature that’s already enabled in your computer, refer to these sub-steps:

• First, you need to check what features are enabled, and for you to find out, enter this command: DISM /online /get-features /format:table | find “Enabled" | more
• And if you want to check the detailed information about a particular feature, you can enter this command: DISM /online /get-featureinfo/featurename:[Enter the name of the feature here]

Option 3 – via Windows Powershell

As you know, the Windows Powershell is a very important tool in Windows 10, and a powerful one at that since you can do a lot of things using this command line. So while you use this tool you need to populate the list of available features first and then you have to download the feature your desired feature.

• Search for PowerShell in the Cortana search box and then run it with administrator privileges.
• Next, type in the following command to populate the list of available features:

Get-WindowsOptionalFeature –Online

• After that, enter the following command to install any feature you want to enable from the list of available features:

Get-WindowsOptionalFeature -Online -FeatureName *Type feature name*

• Now enter the following command to enable your desired feature:

Enable-WindowsOptionalFeature -Online -FeatureName “Type feature name” –all

• And if you want to disable any enabled feature, just enter the following command:

Disable-WindowsOptionalFeature -Online -FeatureName “Type feature name”

Option 4 – via an external installation source

You also have the option to fetch the latest features from an updated offline source. The source could be an ISO any other type of image or just a folder. So you need to decide if you want to use Windows Powershell or Command Prompt.

• If you want to use Command Prompt, just enter this command: exe /online /enable-feature /featurename:< /All /Source:<Enter the path of the feature here>
• If you want to use Windows Powershell, use this command: Install-WindowsFeature –Source “<Enter the path of the feature here>”

Note: If you want to get the latest features, you need to get the latest version of the image of the operating system that you are trying to install the feature from.

To make the Windows 10 operating system a lot more user-friendly, Microsoft introduced the Tablet Mode for Windows 10 devices, especially the 2-in-1 devices like Surface Pro and Surface Book. Despite the Tablet Mode’s efficiency, it also encounters some errors from time to time. One of the issues users reported about tablet mode is that they can’t turn off or exit tablet mode. If you are one of these users, read on as this post will guide you in what you can do to fix the issue. To fix the problem with Tablet Mode, there are several suggestions you can check out. You can try to check the full-screen setting, or perform a full shutdown or perform two buttons to restart the Surface devices. You could also disable Tablet Mode via Registry Editor or perform System Restore or change the settings in the System tab or the Action Center.

Option 1 – Try to check the full-screen setting

• Tap the Win + I keys to open the Windows Settings app.
• Then navigate to this path, Personalization > Start.
• Next, scroll down to toggle off the “Use Start Full Screen” option.
• After that, restart your computer and see if the problem is fixed.

Option 2 – Perform a full shutdown

• Open Command Prompt with admin privileges first.
• Next, execute this command to perform a full shutdown: shutdown /s /f /t 0
• The command you entered will shut down your computer and once it’s turned off, wait for a couple of minutes and then turn it back on.

Option 3 – Try to perform a two-button restart on your Surface device

• Tap and hold the power button for about 30 seconds.
• Then release them after 30 seconds.
• After that, tap and hold the volume up + the power button for 20 seconds. This will cause the display to flash a few times but you have to keep those buttons pressed until your Surface device is turned off.
• Wait for a couple of minutes and your Surface will turn back on. This should resolve the problem.

Option 4 – Try to disable the Tablet Mode via Registry Editor

• In the Start Search, type “registry editor” and right-click on the Registry Editor from the results, and then select the Run as administrator option. This will open the Registry Editor with admin privileges.
• Next, navigate to this registry key: ComputerHKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionImmersiveShell
• From there, look for the DWORD named “SignInMode” and double click on it.
• Set its value to “1” and its base as hexadecimal.
• After that, click on OK to save the changes made. This will make sure that you are signed in to the desktop mode when you log into your account.
• Now look for the DWORD named “TabletMode” and double click on it and set its value data to “0” and it's base as hexadecimal.
• Click on OK to save the changes made and then restart your computer.

Option 5 – Run System Restore

• 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.

Option 6 – Try changing the settings in the System tab or the Action Center

• Go to Settings and navigate to System > Tablet Mode.
• After that, scroll down to set the “Use desktop mode” from the drop-down menu under the “When I sign in” section.
• Now restart your computer and see if the issue is fixed.

In today's world any professional, whatever be design, print, web design or similar is using one or more Adobe programs. Adobe has cemented itself as a must-have software for any kind of serious and even amateur work. Sadly in the latest Windows 11 adobe software in some instances can slow down your computer and put some hard load on the CPU. If you are one of these unfortunate users, keep reading because we have a few things you can do to solve this.

1. Run SFC scan

SFC scan is a built-in Windows tool aimed at diagnosing and repairing system files inside Windows itself. Running an SFC scan usually solves most issues of these kinds so we will try that one first.

1. Press ⊞ WINDOWS + S to open the Search bar and type in cmd
2. Select command prompt and on the right side click on Run as administrator
3. Inside command prompt type in: sfc /scannow and press ENTER
4. Wait for the whole process to finish and reboot your system

2. Update Windows

Windows updates are designed to fix issues and solve problems, check to see if a new update is available to install.

1. Press ⊞ WINDOWS + I to open the Settings app
2. Click on Windows Update in the bottom left pane
3. On the right check visually if there is an update pending and if there is, install it

3. Temporary turn off antivirus and firewall

Antivirus and firewall can interfere with adobe applications and background services, try turning your preferred protection software temporarily off and check if your CPU is still under high load.

4. Reinstall Adobe suite

Uninstall and install a clean version of the adobe creative suite or individual applications that you are using. Check your CPU load after reinstallation.

5. Uninstall Adobe CEF Helper

This is not a really advisable course of action but if non of the previous solutions have produced results then this might be the only option if you would like to keep using the software. Open File Explorer and paste the following line in the path box on top: C\:Program Files>Adobe Systems>Adobe CEF Helper or Adobe Creative Cloud >Adobe CEF Helper_uninstall.exe. Double click on the file and uninstall the CFT helper.

Shortcut virus is an easily spreadable and annoying combination of Worm and Trojan that hides all of your files and folders and then replaces them with shortcuts that look identical to replaced files and folders. Once disguised it will wait patiently for a user's click and once that happens it will replicate itself and further infect the system. This rapid spread can lead to stolen personal data, some system hick-ups, and other system-related issues. This malware mainly affects physical file transfer devices like for example and most USB drives, hard drives, and SD memory cards and it can easily transfer itself to the computer. The advantage of this shortcut virus comparing it to others is that it is mostly undetected by a vast variety of antivirus software. So running just anti-virus software maybe not be enough to remove it from your system. Luckily for all unfortunate users that have caught this annoyance, it can be easily removed fully manually in a short time.

How to Remove Virus from USB and other removable media

Firstly plugin USB, SD, or removable drive. The infection will transfer to your computer when the infected drive is plugged in so before we go to clean the computer itself, clean each removable drive that you have. Also know that infection will spread from computers into removable devices as well if it is not cleaned. Open the File Explorer and remember under which letter is removable drive registered. Open Command prompt but with administrator privileges and go to infected rive by typing its letter followed with “:” (for example D:) and press ENTER Once you have successfully gone to infected drive type in command prompt: Attrib -s -r -h /s /d *.* This will unlock all original files back into removable storage, next copy all files to your computer, and format the removable drive. Once the format is complete, unplug the removable device. Continue to clean all devices with the same method.

How to Permanently Remove a Shortcut Virus from Your PC

Now once we have cleaned all removable devices it is time to fully clean the PC Firstly open the task manager ( CTRL + SHIFT + ESC ), in the process tab find wscript.exe or wscript.vbs, right-click on it (or both if present), and select End Task. Now close the task manager and press Start. Inside start typing in registry editor to search for it and once found open it. Find the following key inside the registry editor: HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Run In the right panel, look for any strange-looking key names, such as odwcamszas, WXCKYz, OUzzckky, etc. For each one, run a Google search to see if it's related to shortcut viruses. If any returns a positive match, right-click on them and select Delete. !!! Accidentally deleting an important key can cause Windows to become unstable, so double-check everything !!!. Close the Registry Editor Now press ⊞ WINDOWS + R to open the run dialog and type in it Msconfig followed by ENTER. Once the System Configuration window opens go to the Startup tab. In the Startup tab, look for any strange-looking .EXE or .VBS programs, select each one and click Disable. Close the Window. Once again open the run dialog and type inside %TEMP% and press ENTER in order to open the Windows temp folder. Inside this folder delete everything. Next in the File explorer go to C:\Users\[username]\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup Look for any strange-looking .EXE or .VBS files and delete them.

RelevantKnowledge is a potentially unwanted program. It is typically bundled by 3rd-party installers and download managers that include other potentially unwanted programs (PUPs). In most cases, the installer will present the user with an RK survey at the end of the setup in order to relate the user’s future behavior to various questions.

From the published: RelevantKnowledge is an online market research community consisting of over 2 million members worldwide, which provides insight into how its members interact with the Internet. In exchange for an agreement to have their Internet behavior monitored, computer users who join RelevantKnowledge are offered various value propositions, including the ability to download screensavers or other software offerings, entry into sweepstakes, and a host of other benefits.

Multiple anti-virus scanners have detected possible malware in RelevantKnowledge.

About Browser Hijackers

If you’ve ever downloaded software via the internet (shareware, freeware, etc,), it’s quite possible you’ve unintentionally installed unwanted programs on your PC. Potentially Unwanted Programs (PUP), also referred to as Potentially Unwanted Applications (PUA), are applications that you never wanted in the first place and often come bundled with freeware. Once installed, the majority of these applications can be tough to get rid of and become much more of an annoyance rather than a necessity. It is clear by its name – unwanted applications – but did not really constitute “malware” in the traditional sense. This is because, the majority of PUPs get into a computer not because they slip through the security holes, for instance, but because the users have got installed them themselves – 100 % unknowingly needless to say. A PUP might not be regarded as malicious or dangerous but nevertheless, it is a common reason for clunky OSs; some PUPs are a lot more aggressive by deliberately slowing down your PC.

The harm unwanted programs could do

PUPs come in various forms. Typically, they could be seen in adware bundlers that are known to use aggressive and misleading advertising. The majority of bundlers install many adware programs from a number of vendors, each of which features its own EULA policy. Safebytes Anti-Malware totally eradicates this threat and safeguards your computer against PUP or adware infection. Additionally, the majority of free programs nowadays come with a few unwanted add-ons; in most cases a web browser toolbar or browser modification such as a homepage hijacker. They can modify browser settings, change the default search engine, replace the default home page with their own websites, slow down internet speed, and also will damage your system as well. PUPs carry a dangerous bite if left unchecked. The most detrimental part of installing a PUP is the spyware, adware, and keystroke loggers that might hide inside. These are programs that don’t really do anything good for you; in addition to taking up space on your hard disk drive, they also slow down your PC, often modify settings without your authorization, the list of frustrating features goes on and on.

Tips on how to avoid getting a PUP

• When installing anything on your personal computer, always study the fine print, including the license agreement. Do not accept terms of use that are for bundled programs. • Use ONLY custom or manual install method – and never thoughtlessly click Next, Next, Next. • Use good antimalware software, such as Safebytes Anti-Malware which offers real-time protection against PUPs. • Think carefully before you download any kind of shareware or freeware. Turn off or get rid of toolbars and browser extensions you don’t actually need. • Always download applications from the original website. The majority of PUPs find their way onto your laptop or computer is via download portals, so steer clear of it entirely.

What To Do If You Cannot Install Safebytes Anti-Malware?

Viruses may cause a lot of damage to your personal computer. Some malware is meant to interfere with or block things that you want to do on your computer system. It may well not allow you to download anything from the net or stop you from accessing some or all websites, particularly the anti-malware sites. If you are reading this article now, you’ve probably realized that virus infection is the real cause of your blocked internet connectivity. So how to proceed if you need to download and install an anti-malware program like Safebytes? Although this kind of problem can be harder to get around, there are a few actions you can take.

Download the application in Safe Mode with Networking

In Safe Mode, you may change Windows settings, un-install or install some applications, and remove hard-to-delete viruses. If the malware is set to load automatically when the computer starts, shifting to this mode can prevent it from doing so. To start the computer into Safe Mode, press the “F8” key on your keyboard just before the Windows boot screen appears; Or right after normal Windows boot up, run MSCONFIG, look over “Safe Boot” under Boot tab, and then click Apply. As soon as you reboot into Safe Mode with Networking, you can download, install, and update anti-malware software from there. Right after installation, run the malware scanner to eliminate standard infections.

Use an alternate web browser to download antivirus software

Web-based viruses could be environment-specific, aiming for a specific internet browser or attacking specific versions of the browser. The most effective solution to overcome this problem is to go with a browser that is well known for its security measures. Firefox has built-in Phishing and Malware Protection to keep you secure online.

Install anti-malware on a USB drive

Another option is to save and operate an antivirus software tool entirely from a Flash drive. Do these simple actions to clean up your infected PC using a portable antivirus. 1) On a virus-free computer, download and install Safebytes Anti-Malware. 2) Insert the USB drive into the clean PC. 3) Double click on the downloaded file to open the installation wizard. 4) Select the drive letter of the flash drive as the location when the wizard asks you exactly where you would like to install the antivirus. Follow the directions to complete the installation process. 5) Transfer the thumb drive from the uninfected computer to the infected PC. 6) Double-click the Safebytes Anti-malware icon on the pen drive to run the application. 7) Simply click “Scan Now” to run a complete scan on the affected computer for malware.

Protect Your Computer & Privacy With SafeBytes Anti-Malware

Want to download the best anti-malware software program for your laptop? There are lots of applications on the market that comes in free and paid versions for Windows systems. A few are really worth your money, but many aren’t. You need to pick a tool that has got a good reputation and detects not only computer viruses but other types of malware also. Among few good applications, SafeBytes Anti-Malware is the highly recommended program for the security-conscious individual. SafeBytes antimalware is a highly effective and user-friendly protection tool that is suitable for end-users of all levels of IT literacy. After you have installed this application, SafeByte's sophisticated protection system will make sure that no viruses or malware can seep through your PC. SafeBytes has excellent features when compared to other anti-malware programs. Here are some popular features present in this tool: World-class AntiMalware Protection: Safebytes is made on the best virus engine within the industry. These engines will detect and remove threats even during the early stages of a malware outbreak. Real-time Active Protection: SafeBytes delivers complete and real-time security for your laptop or computer. They’re highly efficient in screening and getting rid of numerous threats because they’re constantly revised with the latest updates and safety measures. Internet Security: Through its unique safety score, SafeBytes informs you whether a site is safe or not to visit it. This will ensure that you’re always certain of your safety when browsing the net. Very Low CPU and Memory Usage: This program is not “heavy” on the computer’s resources, so you will not notice any overall performance difficulties when SafeBytes is operating in the background. 24/7 Online Technical Support: SafeBytes provides 24/7 technical support, automatic maintenance, and upgrades for the best user experience.

Technical Details and Manual Removal (Advanced Users)

If you wish to manually remove RelevantKnowledge without the use of an automated tool, it may be possible to do so by removing the program from the Windows Add/Remove Programs menu, or in cases of browser extensions, going to the browsers AddOn/Extension manager and removing it. You will likely also want to reset your browser. To ensure the complete removal, manually check your hard drive and registry for all of the following and remove or reset the values accordingly. Please note that this is for advanced users only and may be difficult, with incorrect file removal causing additional PC errors. In addition, some malware is capable of replicating or preventing deletion. Doing this in Safe Mode is advised.

The following files, folders, and registry entries are created or modified by RelevantKnowledge

Windows has tendencies to remember WIFI passwords so it can reconnect automatically to them. But from time to time we change passwords and Windows does not let us change it since he has network remembered. In this case, we will not be able to connect to the internet. In this helpful guide, we will let you know which steps you will need to take in order to solve this issue and to be able to connect to the internet again.

1. Restart Modem

   First thing first, restart your modem. Windows might see it as a new network and offer you to type in the password for it.

2. Update driver

   Sometimes the issue could be due to driver problems, open device manager and update WIFI driver or reinstall it.

3. Reset WIFI password

   Press ⊞ Windows + R type “Control” > hit Enter. Now click Network and Internet > Network and Sharing Center > Change adapter settings. Right-click on the connected Wifi and select Status. Click Wireless Properties, change the password from the Network security key section, and then click OK to reset your WiFi password.

4. Forget the network

   Click on Start > Settings > Network & Internet > Wi-Fi. Click the Manage known networks link Select the network you are looking for Select Forget.

5. Delete your WIFI profile

   Press ⊞ Windows + X to open the secret menu and click on Command prompt (admin) In command prompt windows type: netsh wlan show profile netsh wlan delete profile name=<profile name> Reboot

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.

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

Error 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!

In today's world setting up a LAN network or internet connection is no longer a daunting task that will require having a bachelor's degree in computer science nor a specialized technician. But even in the present-day environment issues and problems can occur. One of these problems is detecting or running a network at a slower 100MB speed instead of 1GB. Troubleshooting of this nature is somewhat more complex than your typical troubleshooting issue because several things including hardware could be involved in this particular problem but do not worry, we are here to back you up and guide you Setting up a home or small office network no longer requires a specialist technician to constantly monitor and optimize the LAN routers and connected PCs. As Windows networking has improved and new features have become available on the hardware, configuring a 1GB network should be as simple as connecting the LAN to a router that came with this capability. If however the network’s rated speed only gives 100MB, troubleshooting the issue is more complex. To find the problem, you’ll need to check the hardware devices, cable connections, and the software you are using to connect and manage the network.

Hardware checks

1. Check both connection jacks to see if it has any loose or frayed wires. If any of the wires are loose, it can be the cause of the performance issue. You should replace the cable if you discover damage to the connectors.
2. Inspect the entire length of the cable and check if the harness shows any clear signs of damage. A bent or damaged cable can reduce the amount of information it’s capable of transferring between the PC and LAN router. If you find any damage to the cable, replace it to restore your network speed.
3. Is the cable capable of transferring 1GB speeds? Different network cables support different network speeds. A Cat-5 cable will only provide 100MB transfers, while a Cat-5e or Cat-6 can support up to 10GB transfers. Check the cable’s labels to make sure you are using a Cat-5e or higher-rated data cable.

Now when the hardware issue is out of the way we can focus a little more on the software part.

Let's try the first easy solution, run Windows built-in troubleshooter

1. Click the Windows button and type Control Panel. Then select the top result.
2. If your Control Panel shows the Category View, change it to display Small Icons instead.
3. From the list of available applications, select Network and Sharing Center.
4. In your Network and Sharing Center, you can see the active network, set up a new network connection, troubleshoot problems, or change your adapter settings. Before making changes to your device properties, you can let Windows run a troubleshooter on your adapters to see if it can automatically fix your connection issues.
5. Click on Troubleshoot Problems from the Change Your Network Settings section.
6. In the Troubleshooter Application, scroll down and find the Network Adapter option.
7. Click on Run Troubleshooter to let Windows check your network adapter’s configuration for any issues.
8. Select the Ethernet Adapter you’re currently using from the list and click Next to proceed.
9. Wait for the process to complete and check the results. If Windows detects any issues, it will recommend a fix. However, if the configuration of your network adapters does not have any problems, you’ll see a message that Windows couldn’t detect any problems.
10. If there are any issues with the cable, the troubleshooter will detect the connection issue and request you replace the cable and connect it to your PC.
11. It can occur that even after inspecting the cable and you didn’t find any visible damage on the housing or connectors, it could still be faulty. Replace the cable with a new one and rerun the troubleshooter to see if the cable is working as required.

If the troubleshooter finished and you received a Windows Couldn’t Detect Any Issues result, you’ll need to verify your adapter’s speed settings.

1. In your Network and Sharing Center, select the Change Adapter Settings option from the left menu.
2. On the list of adapters, choose the one you’re using and click the Right Mouse Button to open the context menu.
3. Select Properties from the Context Menu to access your adapter’s settings.
4. On the Ethernet Properties window, you can enable or disable different features and install additional protocols. To change the device settings, click on Configure to continue.
5. This will open the Device Controller Properties window where you can check the status, make changes to the settings, find out information about the driver, or check historical events on the device. Select the Advanced tab to access the device settings.
6. On the Advanced tab, locate the Speed and Duplex setting.
7. The Auto-Negotiation option may cause network performance issues on certain Ethernet adapters and routers. The setting allows your adapter to change the speed settings according to the LAN configuration you connect to your PC. If you connect to different LAN networks regularly with different speeds, it can occur that the setting doesn’t update from 100MB to 1GB while switching.
8. Change the Value to match the network speed of the LAN you’re connecting to your PC and use the manual speed setting.
9. Click OK to apply the setting and test your network performance. If your adapter doesn’t have the 1GB setting available but you know the rating should go up to that speed, it could indicate that you aren’t using the right driver for the device.

If you don’t have the setting available or the device still only provides 100MB speeds after changing the Speed setting to a manual value, you may have to update the driver for the device.

1. On the Ethernet Properties Window, once again click on Configure to access the Device Properties Window. Then select the Driver Tab to access your driver details.
2. Select Update Driver from the available options.
3. On the Update Driver window, select the option to let Windows Search Automatically for Updated Driver Software.
4. Windows will connect to the internet and search for the latest drivers online. If a newer driver exists, Windows will download and install the driver for you. If you’re using the latest driver, Windows will inform you that no updated drivers are available.