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Browsing the internet doesn’t always go smoothly, you might encounter ads, pop-ups, viruses, malware, and even errors. In this post, we’ll walk you through how you can fix the 502 Bad Gateway error that you might encounter in browsing the internet. This kind of error suggests the server which is the one that’s acting as a gateway to facilitate in taking your request to the server and bring some response back has received an invalid response or even no response at all. It could be that the connection is broken or that there is an issue on the server-side that returns an invalid response. Even though the 502 Bad Gateway error is a server-related error, there are still a few things you can try that might help resolve it, if tapping the Ctrl + F5 keys does not resolve the problem. Keep in mind that it doesn’t matter what website you open as this error can appear on any website. To resolve the problem, you need to follow the options prepared below.

Option 1 – Check the network cable connections and restart your router

As with other connection problems, this is the most basic thing to do before you try other troubleshooting options because the root cause of the problem might be as simple as a cable not connected properly or a router that just needs to be restarted. Thus, checking the network cable connection to see if there is anything out of order can help as well as restarting your router.

Option 2 – Reset Winsock, TCP/IP & Flush DNS

Resetting Winsock, TCP/IP, and flushing DNS might help you resolve the issue. To do so, follow these steps:

• Right-click on the Start button and click on Command Prompt (administrator) so you can pull up an elevated Command Prompt.
• After that, execute each one of the commands listed below. And after you typed in one after the other, you have to hit Enter.

1. netsh winsock reset – type in this command to reset Winsock
2. netsh int ip reset resettcpip.txt – type in this command to reset TCP/IP
3. ipconfig /flushdns– type in this command to flush the DNS cache

• Next, restart your PC and check if the problem’s fixed.

Option 3 – Change the DNS

Changing the DNS server for your network can also help you fix the 502 Bad Gateway error. You can use a public DNS like the Google Public DNS, Open DNS, Yandex DNS, Comodo Secure DNS, and many more. All you have to do is to override the default DNS settings on your PC so that you can specify which DNS server is used as well as which IP address should be used for a specific domain.

Option 4 – Try updating the Network Adapter Driver

Follow the steps below to update your Network Adapter Driver:

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

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

Option 5 – Try a Network Reset

When all else fails, you might have to consider resetting your entire network settings. Simply follow the steps below to do so.

• Click on the Start button and then click on the gear-like icon for Settings to open it.
• Next, select Network and Internet.
• Then scroll down and look for “Network Reset” – click on it and then click on the Reset now button.

As you know, Windows 10 offers its users tons of options to log in to their computers. This includes simple and easy methods like PIN and complex ones like the Windows Hello Face unlock. However, there are instances when you might face a situation where the login screen in Windows 10 does not appear at all. If you are currently facing this problem, worry not for this post will show you what you can do to fix this problem. There are actually two scenarios to this issue, you might encounter one where the login screen does not show up at all, while the second one is when the login screen shows up but there is no username or password box. There are several options you can check out to resolve the problem. You can try to run System Restore or try the combination of Ctrl + Alt + Delete keys. You could also try to enter a username and password to use the computer or disable Fast Startup or troubleshoot the problem in a Clean Boot State. You could also create a new User Account or run Fresh Start or run the Startup Repair. To get started, follow each one of the given options below.

Option 1 – Try using the Ctrl + Alt + Delete key combination

The first and simple thing you can do to fix the login screen is to tap the Ctrl + Alt + Delete keys and see if it makes the credentials appear or not. If not, proceed to the next given option.

Option 2 – Try running System Restore

If you aren’t able to boot into the desktop of your computer, you can run System Restore in the Advanced Startup Options by following these steps:

• Boot your computer into the Advanced Startup Options screen.
• From there, you will see some options to troubleshoot when you can’t log in to Windows in the usual way.
• Now select Troubleshoot > Advanced Options > Command Prompt.
• After that, type “rstrui” and hit Enter to execute the command which will start the System Restore process.
• Once it’s done, restart your computer.

Option 3 – Try to turn off Fast Startup

• Tap the Win + R keys to open the Run dialog box and type in “control” to open the Control Panel.
• Next, click on the Hardware and Sound section and click on Power Options.
• Afterward, select the “Choose what the power buttons do” option from the left side menu pane.
• Now click on Change settings that are currently unavailable and uncheck the entry that says, “Turn on fast startup (Recommended).
• Then click on Save Changes and restart your computer and see if it has fixed the problem or not.

Option 4 – Try troubleshooting the problem in a Clean Boot State

There are times when some conflicting programs installed in your computer might be the reason why there is an issue with the password box in the login screen of Windows 10. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.

• 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” check box 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” check box.
• 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.)
• From there, start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.

Option 5 – Try to run Startup Repair

You might also want to run Startup Repair in fixing the issue with the login screen. To do so, follow the steps below.

• You can start by creating and booting from a bootable Windows 10 USB Stick.
• After that, click on Repair your computer located on the bottom left corner when you are on the initial Windows Startup screen.
• Next, click on Troubleshoot, and then on the other screen, click the Startup Repair option.
• Now select the operating system you want to repair. Once you do that, it will start to repair your operating system. Wait until the process is completed and then check if the problem’s now fixed.

One of the useful features that came with Windows 10 is the Mobile Hotspot although there’s a downside to it – it drains your battery faster especially if your Windows 10 device is running on battery. Another one of its flaws in the implementation of this feature is that it stays activated even when the connection is idle. In other words, it is still activated even if no devices are connected to it. As a result, it consumes battery life and affects it. There are also instances when it affects the performance of the network connection. At the time of writing, Microsoft hasn’t done anything about this dilemma yet so in the meantime, you can continue reading this post to resolve this issue on your Windows 10 device. You can remedy this Mobile Hotspot issue by running a command in Windows PowerShell. To get started, follow the given instructions below.

Turn off Mobile Hotspot Automatically:

Step 1: The first thing you have to do is to copy the following command:

powershell -windowstyle hidden -command "Start-Process cmd -ArgumentList '/s,/c,net stop "icssvc" & REG ADD "HKLMSYSTEMCurrentControlSetServicesicssvcSettings" /V PeerlessTimeoutEnabled /T REG_DWORD /D 1 /F & net start "icssvc"' -Verb runAs"

Step 2: After copying the command given above, open the Notepad app and paste the command you copied there and save it. And when saving it, select the “Save as” option and its File type as “All files”. Step 3: After that, put “TurnOnTimer.bat” as the file’s name and save it on your Desktop. Step 4: Once done, run the file you just created, and when a User Account Control or UAC prompt appears, just click on Yes. Step 5: After you run the file, it will run a series of scripts in a command line which will turn off the Mobile Hotspot automatically when idle. And that’s how you automatically turn off the Mobile Hotspot when your Windows 10 device is idle. On the other hand, if you want to undo the changes made, you can always do so using the steps provided below.

Turn on Mobile Hotspot:

Step 1: Copy and paste the following command in the Notepad app:

powershell -windowstyle hidden -command "Start-Process cmd -ArgumentList '/s,/c,net stop "icssvc" & REG ADD "HKLMSYSTEMCurrentControlSetServicesicssvcSettings" /V PeerlessTimeoutEnabled /T REG_DWORD /D 0 /F & net start "icssvc"' -Verb runAs"

Step 2: After copying and pasting the command, save it as “TurnOffTimer.bat” on the Desktop. Step 3: Once done, run the file like what you did earlier and select Yes when a UAC prompt pops up. This will run a series of scripts on a command line which will revert the changes back to their default state.

This post will guide you in what to do if you are trying to share the internet connection from your Android smartphone to your Windows 10 computer but USB tethering is not working. Although you can always connect your Android phone to your computer using a USB cable, you still won’t be able to access the internet. However, if you’ve already enabled the USB tethering option in your smartphone, you should be able to access the internet but if you still can’t then you can fix this issue by reading this post. There are several potential fixes you can check out to fix the USB tethering issue. You can try running both the Internet Connections and Network Adapter troubleshooters or try installing the USB RNDIS adapter or disable any unnecessary network adapters.

Option 1 – Try to run the Internet Connections and Network Adapter troubleshooter

There are various built-in troubleshooters in Windows 10 that can help fix system issues. Since you are dealing with an internet connection problem, you can try running both the Internet Connections and the Network Adapter troubleshooters. To run them, follow these steps:

• Go to Settings > Update & security > Troubleshoot.
• From there, you can select the Internet Connections troubleshooter.
• Click on the Run troubleshooter button to troubleshoot the problem.
• Wait until the troubleshooter is done identifying and fixing the problem automatically.
• Then follow the next on-screen instructions that may appear.
• Once it’s done, check if the USB tethering issue is now fixed.

Note: You can also try to run the Network Adapter troubleshooter. It is also located under the Troubleshoot section. Just scroll down until you see it and then run it.

Option 2 – Try installing or updating the USB RNDIS adapter

RNDIS or Remote Network Driver Interface Specification can also help you resolve the USB tethering problem. If the pre-installed driver does not help you in connecting to the internet, then you can try installing the USB RNDIS driver that is, if it’s not installed yet. If it is already installed, you can try to update it instead.

• Tap the Win + R keys to open Run and type “devmgmt.msc” in the field and hit Enter to open the Device Manager.
• Next, expand the Network adapters section and look for the Remote NDIS based Internet Sharing Device. But if you are using a Samsung smartphone, you might see “Samsung” instead of under Network adapters.
• Right-click on it and then select the “Update driver” option.
• Then select the “Browse my computer for driver software” option.
• After that, select the “Let me pick from a list of available drivers on my computer” option.
• Now uncheck the checkbox for “Show compatible hardware”.
• From the given list on your left-hand side, look for Microsoft and then select the Remote NDIS based Internet Sharing Device on your right-hand side.
• Click on Next. A new popup will appear where you have to click on Yes. This will install the driver.
• Now click on the Close button and restart your computer.

Option 3 – Try disabling any unnecessary network adapters/connections

Assuming that your Ethernet connection is showing ping loss which indicates that the internet is not stable. In such time, if you use the USB tethering functionality, you won’t be able to access the internet connection from your smartphone. The internet connection will be frequently disconnected since your computer gives priority to the Ethernet connection. Thus, you have to disable the Ethernet connection temporarily.

• Right-click the network icon on your Taskbar and select the option “Network and Sharing Center”.
• After that, click the network connection. And then click the Disable button from the status box that opens.
• After that, check if you can now connect to the internet or not.

Error 0x00000643 - What is it?

This is a Windows Vista printer error. It occurs when you try to use the plug-and-play service to install a WSD printer on your PC. WSD is the abbreviation for Web Services for Devices. It is a Microsoft API to simply programming connections to web service enabled devices such as printers, file shares and scanners.  The error 0x00000643 code is displayed in the following format:

“Operation could not be completed (error 0x00000643)”

Solution

Error Causes

The error 0x00000643 may occur due to multiple reasons, including:

• No suitable driver installed for your printer
• A firewall or other security program is too restrictive
• Registry file has invalid entries
• Virus and Trojan
• Outdated system drivers

Further Information and Manual Repair

To resolve this error code on your PC, you don’t have to hire a professional technician and spend hundreds of dollars to perform system repair. You can resolve it all by yourself, even if you are not a computer programmer or lack technical expertise. Here are some of the easiest and proven methods to fix the error 0x00000643 on your PC:

1. Update Outdated Drivers

This can be done by accessing the ‘Device Manager’. All you have to do is, go to the start menu and type Device Manager in the start search box. Then click on the Device Manager in the list. On the action menu, click the scan for hardware changes or update the driver.

2. Delete the WSD Port to Resolve Error

Go to the start menu and type printers in the search box. Click printers in the given program list and then click the option add a new printer. After that, select the existing WSD port and any printer driver. Now delete the printer. The WSD will be deleted automatically. Once this is done, connect the printer to your computer. You will see the plug-and-play service will begin to install the printer again. This process is most likely to resolve the issue and reinstall your printer.

3. Disable Firewall

Sometimes the error may occur if the security programs are too restrictive such as the Firewall. To fix the problem simply disable Firewall.

4. Viral Infection

If the underlying cause of the error is a viral infection, then download a powerful antivirus and run it on your PC. Scan for viruses and delete them.

5. Registry Invalid Entries

If you don’t clean the registry regularly, this overloads with unnecessary, redundant and obsolete files like cookies, internet history, junk files, bad registry keys and invalid entries. This damages the registry and generates such error codes. Although you can resolve and repair the registry manually, but that method is slight tricky and time consuming. It may require technical expertise. However, another quick and easy way to clean and restore the registry and resolve error 0x00000643 on your system is to download Restoro. This is a next-generation, advanced, and highly functional PC Repair Tool. It is deployed with an intuitive algorithm and multiple utilities such as a smart registry cleaner, a powerful antivirus, and a system optimizer. The registry cleaning utility detects all registry issues on your PC, removes invalid entries cluttering the registry, and repairs it right away thereby resolving error 0x00000643. The antivirus simultaneously detects malware on your PC and removes them while the system optimizer boosts the speed of your computer significantly. Restoro is bug-free, safe, and efficient. It has simple navigations and a user-friendly interface. This software is compatible with all Windows versions including Vista. To fix error 0x00000643 on your system in seconds, click here to download Restoro now!

Social media is here to stay it seems, from Facebook, Instagram, Twitter, etc each site has its users and its rules. Companies, bloggers, public figures, and people, in general, are using them on a daily basis and some are posting cool ads, nice graphics, videos, and many more in order to gain followers or just to share something that they think is worth.

Making your post look good is somewhat essential if you plan on reaching a larger audience and Adobe's Express aims to fill that gap. It is the latest Adobe product that is purposely made for graphic and video creation for social media.

Adobe is well known in the world of professional design in all spheres like print, web, and motion, with this application, they want to take over social media design with Express. The direct competitor to Spark and canva, Express is filled with high-quality adobe templates and some great stuff found in photoshop like automatic background removal which gives it an edge over other applications.

The good thing about Express is that there is a completely free version and premium, like its competitors but with some benefits that clearly show that Adobe is determined to place its application on top of the game. The free plan includes:

• Thousands of unique templates, design assets, and Adobe Fonts.
• A limited collection of royalty-free Adobe Stock-free collection photos.
• Basic editing and photo effects including remove background and animate.
• Create on both web and mobile.
• 2GB of storage.

For 10 USD per month of 100 USD prepaid annual fee, you get a premium plan that includes:

• All premium templates and design assets.
• The entire collection of over 160 million royalty-free Adobe Stock collection* photos.
• Over 20,000 licensed Adobe Fonts, curved type, grids, and font pairs.
• Premium features like refine cutout, resize, and graphic groups.
• Plan, schedule, and publish social media content across multiple channels.
• Add your branding, logo, colors, and fonts in one tap.
• Convert & export to and from PDFs and other file types.
• Create, manage, and share your templates and assets with Creative Cloud Libraries.
• Create on both web and mobile.
• 100GB of storage.

The application itself is incredibly easy to learn and to work with and literally, anyone can pick it up and start creating immediately. No matter are you just starting with social media or using Canva or Spark, give Express a go, make a free account and try it, I guarantee that you will find some features amazing, and its ease of use relaxing.

To function properly and as intended, Windows 10 depends on a number of resources and software components. Even with a simple task as powering the machine, there are already several smaller software components supporting it. However, if any of these resources or components experience issues, it will affect the overall function of the computer. One of the errors reported is the Kernel Power Blue Screen error which is triggered by the Windows Kernel that mostly comes with a Windows Kernel Event ID 41 error. This kind of error can turn off and reboot the computer randomly. Here’s an example of a Bugcheck code entry with the same event:

 “EventData BugcheckCode 159 BugcheckParameter1 0x3 BugcheckParameter2 0xfffffa80029c5060 BugcheckParameter3 0xfffff8000403d518 BugcheckParameter4 0xfffffa800208c010 SleepInProgress false PowerButtonTimestamp 0Converts to 0x9f (0x3, 0xfffffa80029c5060, 0xfffff8000403d518, 0xfffffa800208c010)”

This kind of BSOD error is caused by an issue with the Power Supply components in both the software and hardware parts of your computer. In such cases, if your computer is stuck in a reboot loop, you need to troubleshoot the problem via Safe Mode or in the Advanced Startup options screen.

Option 1 – Try disabling Overclocking

If you have enabled Overclocking, you might have to disable it as some users reported that the Kernel-Power Blue Screen error started to appear right after overclocking. To disable it, follow the steps below.

• Go to the Start Menu and open Settings.
• Next, select Update and Security and go to the Recover tab.
• From there, click on Restart now in Advanced startup. This will restart your computer.
• Once you’re in the Advanced startup, go to Troubleshoot and then select Advanced Options.
• From there, select the UEFU Firmware Settings.
• Now click on Restart. Once your computer has restarted, it will automatically open BIOS.
• From the BIOS, go to the Advanced tab and navigate to Performance and then look for Overclocking.
• Once you’ve found Overclocking, make sure that it is disabled. If it’s not, then disable it and then save the changes made by tapping the F10 key.
• Start your computer normally and check if the Kernel-Power Blue Screen error is now fixed.

Option 2 – Try to run the Power troubleshooter

The next thing you can do is to run the Power troubleshooter. To do so, follow these steps:

• Go to Settings and navigate to Update & Security > Troubleshoot.
• After that, look for the “Power” option from the given list of built-in troubleshooters and click on it.
• Next, click on the “Run the troubleshooter” button to run the Power troubleshooter.
• Once the troubleshooter is done identifying the problems, follow the next on-screen instructions to resolve the problem.

Note: You could also try to run the Blue Screen troubleshooter to fix the Kernel-Power BSOD error. You can find it under the same page as the Power troubleshooter.

Option 3 – Try to replace the Power Supply Unit

You could also try to consider physically replacing the Power Supply Unit or PSU of your computer and see if that helps or not.

Option 4 – Run the Windows Memory Diagnostic tool

Since this error could be caused by some issues in the memory, you can try running the Windows Memory Diagnostic tool and see if it helps.

• Tap the Win + R keys to open Run and type exe and hit Enter to open the Windows Memory Diagnostic Tool.
• After that, it will give two options such as:
  • Restart now and check for problems (Recommended)
  • Check for problems the next time I start my computer
• Once your computer has restarted, perform a basic scan or you could also go for the “Advanced” options such as “Test mix” or “Pass count”. Simply tap the F10 key to start the test.

Note: After you select the option, your PC will restart and check for memory-based issues. If it finds any issues, it will automatically fix them and if there’s no issue found, then it’s most likely not a memory-based issue so you should try the other options given below.

Option 5 – Try to check physically check your RAM

In this option, you have to check your RAM physically especially if you tend to use multiple physical RAMs on your computer so it can be quite tricky and technical. You have to check first if they are of the same frequency and then verify if the chip is compatible or not. You also have to check if the sockets are attached using some adapter or non-recommended apparatus as it can cause some problems while giving performance hit to your computer.

Option 6 – Try to update the BIOS

Updating the BIOS can help you fix the Kernel-Power BSOD error but as you know, BIOS is a sensitive part of a computer. Even though it is a software component, the functioning of the hardware depends on it largely. Thus, you must be careful when modifying something in the BIOS. So if you don’t know much about it, it’s best if you skip on this option and try the other ones instead. However, if you are well-versed in navigating the BIOS, then follow the steps below.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “msinfo32” in the field and press Enter to open System Information.
• From there, you should find a search field on the bottom where you have to search for the BIOS version and then press Enter.
• After that, you should see the developer and version of the BIOS installed on your PC.
• Go to your manufacturer’s website and then download the latest version of BIOS on your computer.
• If you are using a laptop, make sure that you keep it plugged in until you have updated the BIOS.
• Now double click on the downloaded file and install the new BIOS version on your computer.
• Now restart your computer to apply the changes made.

Note: If updating the BIOS didn’t help, you might want to consider resetting it instead.

Option 7 – Disable Fast Start-up

If you want your computer to boot faster, then you might have enabled Fast Start-up. This feature is ideal for computers that are using a hard disk drive. However, turning on this feature also means that when the computer boots, it might lag some drivers that are loaded when it initially boots up. Thus, it might be the potential cause of the Kernel-Power BSOD error. Thus, you need to disable Fast Start-up. To do that, follow these steps:

• Boot your PC into Safe Mode.
• Then tap the Win + R keys to open the Run dialog box.
• Next, type in “control” to open Control Panel.
• After that, select Hardware and Sound and click on Power Options.
• Select “Choose what the power buttons do” from the left side menu pane and click on Change settings that are currently unavailable.
• Afterward, uncheck the “Turn on fast startup (Recommended)” entry and click on Save Changes.
• Now restart your PC for the changes to take effect and then check if the problem’s fixed afterward.

If you connected your Hard Disk, USB, or SD card to your Windows 10 computer and you suddenly encounter an error that says, “Windows was unable to repair the drive”, read on as this post will help you fix the problem. This kind of error indicates that the file system on the drive has become corrupted and that ChkDsk was not able to repair the problem. You can also encounter this error when you try to run the ChkDsk utility to repair the system. This kind of error is most likely due to the general corruption of the contents in the drive. It is also possible that you removed the external drive without using the “Safely remove hardware” option or it could be that the drive is still in use. To fix the problem, the obvious thing to do is to safely remove the external drive by using the “Safely remove hardware” option. If it didn’t work, you can try to run the CHKDSK utility from the command line or you could also restart your computer in a Clean Boot State and then run the scan. Before you proceed with the potential fixes provided below, make sure that you create a system restore point first or you could also create a backup copy of the data to an external drive.

Option 1 – Run the CHKDSK utility from the command line

Although some users reported getting the “Windows was unable to repair the drive” when they run a CHKDSK scan, other users reported that running it also fixed the error. Thus, you can try to run it and see if it works or not.

• In the Windows Search box, type “command prompt” and from the search results, right-click on Command Prompt and select “Run as administrator”.
• After opening Command Prompt, type this command and tap Enter: chkdsk <Partition Letter>: /f
• The command you entered will start to check for errors and fix them automatically. Else, it will throw an error message saying, “Chkdsk cannot run because the volume is in use by another process. Would you like the schedule this volume to be checked the next time the system restarts? (Y/N)”.
• Tap the Y key to schedule Disk Check the next time your computer restarts.

Option 2 – Restart your computer in a Clean Boot State

There are some instances that some conflicting programs installed in your computer might be the one that triggers the “Windows was unable to repair the drive” error to appear when you connect your external drive or run the CHKDSK utility. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.

• 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” check box 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” check box.
• 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.)
• Once your computer has restarted in a Clean Boot State, perform your scan again and see if it now works, and then start to isolate the problem by checking which one of the programs you installed recently is the root cause of the problem.

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.

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If you suddenly get a message telling you that “Your Windows license will expire soon, You need to activate Windows in Settings” on your Windows 10 computer but you know that your Windows 10 is already activated. Worry not for this post will help you get rid of that error message right away. Before you get started, make sure that you have the Windows product key with you. If you don’t, you can get it by running the following command in an elevated Command Prompt:

wmic path SoftwareLicensingService get OA3xOriginalProductKey

Take note of the product key and then proceed to the options given below.

Option 1 – Try activating Windows 10 again or use another product key

• If you’re sure that you have the correct product key, click the Go to the Settings button.
• After that, click the Activate button once again.
• If you have another license key, you can also use that as well, just simply click on the Change product key.
• Then enter the new product key and click on Activate. That should fix the problem, if it doesn’t, refer to the next option below.

Option 2 – Try to reset the licensing status

• Click the Start button and then type “cmd” in the Search box and then tap Ctrl + Shift + Enter to open an elevated Command Prompt.
• Next, type the “slmgr –rearm” and hit Enter to reset the licensing status.
• Restart your computer and check if the error is now gone or not.

Option 3 – Try uninstalling the product key and re-enter it once more.

• The first thing you have to do to uninstall the product key is to know the Activation ID of your Windows installation. To do so, open an elevated Command Prompt and type this command, and hit Enter – vbs /dlv
• After you enter the command, you should see the licensing status and Activation ID. And to get all the Activation IDs of all the installed Windows versions, key in this command and hit Enter – vbs /dlv all

Note: The “/dlv” parameter will give you the license information for the installed operating system.

• After you enter the second command, you should see a Windows Script Host window with all the Windows licensing and activation status. Take note of the Activation ID.
• Next, in the same elevated Command Prompt, type this command – slmgr /upk <Activation ID>

Note: In the third given command, “/upk” stands for “uninstall product key”. This parameter uninstalls the product key of the current Windows edition.

• Restart your PC. After that, your computer will be in an unlicensed state so you need to re-enter the product key again.

Option 4 – Try rebuilding the Tokens.dat file.

The issue might be caused by a corrupted Tokens.dat file. The Tokens.dat file is a digitally signed file that stores most of the Windows Activation files so if it is corrupted then no wonder you’re having activation issues. To rebuild the Tokens.dat file, refer to these steps:

• From the WinX Menu, open an elevated Command Prompt.
• After opening Command Prompt, you need to type each one of the following commands and after you type each command, hit Enter.
  • net stop sppsvc
  • cd %windir%ServiceProfilesLocalServiceAppDataLocalMicrosoftWSLicense
  • ren tokens.dat tokens.bar
  • net start sppsvc
  • exe %windir%system32slmgr.vbs /rilc
• Now restart your computer.

Option 5 – Try running the Windows 10 Activation Troubleshooter

• Go to Settings and then select Activation.
• After that, click on the Windows Activation and then troubleshoot. This will help you address most of the commonly found activation issues in Windows devices.

Option 6 – Try activating Windows 10 via mobile phone

Activating Windows 10 can also be done using your phone. Just note that you have to call Microsoft to do so.

• In the Start Search box, type in “Slui 4” and tap Enter.
• Next, select your country and click on Next.
• Keep the window open and call the toll-free number of the country you’re from.
• Afterward, a confirmation ID should be given by the automated system which you must take a note of.
• Finally, in the box on the window, type in the confirmation ID and click on the Activate button. That should do it.