An Easy Guide to Fixing Libvlc.dll Error

Receiving a screen of death is not a pleasant experience at all and most users would agree that they would very much like not to face one during their work with the computer. Sadly PC is not a perfect machine and it is not working in a perfect environment so errors happen. The most famous and well-known death screen is blue which is also the most common one, my bet would be that there is not a user which has not been faced with this blue error screen. There is no simple explanation why these stop errors occur as several factors can be involved. However, it is known that the malfunctioning of hardware drivers or drivers that are installed by third-party software drive this unwanted change. But did you know that there is more colors for infamous death screens and not just blue one? Microsoft has coded different errors to different colors in the goal for the technical team to be aware right away of what type and kind of error they are dealing with. Color for screen errors are: Blue, Black, Pink, Brown, Yellow, Red, Orange, Green and White If you are interested in what color represents what keep reading.

BLUE

A stop error or exception error commonly called the blue screen of death (BSoD) or blue screen, is an error screen displayed on Windows computers following a fatal system error. It indicates a system crash, in which the operating system has reached a condition where it can no longer operate safely. This is caused by many different problems, such as a general hardware failure or a crucial process terminating unexpectedly.

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BLACK

On Windows 10 systems, a Black Screen of Death can be caused by an unfinished Windows Update. To resolve this problem, simply hold the power button down on your PC or laptop to switch off the computer. A cold start should result in the system booting properly.

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PINK

It is a diagnostic screen with a white type on a pink background. Pink Screen is mainly seen when the VMkernel of an ESX/ESXi host experiences a critical error, becomes inoperative, and terminates any virtual machines that are running. It is not fatal and generally considered more of a developer testing issue. When encountered, it can be fixed quickly by following the simple action of pressing and holding your computer’s power button to shut down the device.

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BROWN

The Microsoft Windows 10 Operating System Brown Screen of Death is an on-screen fatal error notification with bug check codes which is seen when a computer crashes due to graphics hardware or software-related problems (failing graphics drivers).

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YELLOW

It affects the functioning of a browser, particularly Mozilla Firefox. The Yellow Screen of Death makes the appearance with a weird buzzing sound in the background when the XML parser refuses to process an XML document causing a parsing error and a weird buzzing sound. The issue persists unless the computer is manually rebooted.

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RED

Commonly the Windows 10 red screen is caused due to the hardware error, particularly if you overclock your Windows PC/laptop. Despite this, sometimes the red screen of death is also caused by outdated or incompatible drivers or due to BIOS issues.

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ORANGE

The Orange Screen of Death on Windows occurs due to fatal hardware errors. Multiple reasons have been reported for the Orange Screen of Death. Some had this issue when watching a YouTube video, some were not able to boot into Windows. It can even occur when waking up from Sleep.

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GREEN

The green screen of death only appears when you're running an Insider Preview version of Windows 10. It's the same as the blue screen of death, and it will show the same error messages. ... If you see a green screen of death (GSOD) on your PC, that's a sign you're using an Insider Preview build of Windows 10.

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WHITE

The White Screen on Windows is also an error where the screen of the computer just turns white and freezes. There can be several things that can cause the white screen to appear on the Windows laptop monitor. But the main issue could be because of malfunctioning of the graphics hardware.

Living in today's world sadly is still living in the COVID-19 pandemic. It has been more than a year and sadly pandemic is still very strong and we are battling it on a daily basis. Governments all over the world are trying to battle pandemics in their own way with their own ideas and prevention measures. We as individuals can not very much influence how will the pandemic itself go but fortunately in this modern age of information we can at least follow and be in the loop at the current state of the situation regarding it. Today instead of having a troubleshooting article or tips and trick for your PC we are doing something else but in the domain of internet technology, you know, just to keep everything still IT related ???? Below you will find websites with small descriptions of what they do to keep yourself informed and hope to get over this dreadful pandemic.

1. The WHO’s COVID-19 Dashboard

   If you are interested in real-time COVID-19 information about active cases, death tool so far, new cases and the number of vaccines administrated so far I would recommend WHO's dashboard. How WHO is a non-government institution composed of doctors from all over the world with just a single goal in mind, to help and put an end to this pandemic is a great non-biased source of information on the current state of virus spread.

2. Vaccine Finder

   Please be aware that Vaccinefinder is working only on the territory of the United States of America. The reason why it was included in this list is that basically it is a great idea and I hope to see this site expand on other world regions or at least that inspires the emergence of another worldwide website with this type of content. If you live in the USA, this site will be a great help since you can track where and how many shots are distributed to states and even towns in America.

3. COVID tracking project

   This site is also for U.S. residents, this time it is about tracking cases in each state with details and statistics. If you are interested in more detailed statistics of hospitalized patients per state or overall you are just interested in statistics about the pandemic in the U.S. this site might provide all the information about your needs.

4. NPR

   On national public radio or NPR for short, there is a special section devoted to the coronavirus where new articles about pandemic are released daily with new information and new findings on how to battle it and the current state of things. A great informational site to keep up with the current state of things.

5. Google's COVID-19 page

   Google has not been inactive during this pandemic and on its page specially dedicated to the COVID-19 virus you can find a lot of free information updated daily. From safety and prevention tips to data about pandemics there is a lot of ground covered on-page and we recommend at least going through the prevention section to inform yourself how to keep yourself and others safe.

6. Coronavirus tracker

   This daily updated chart can show how many cases and deaths are from chosen time period all in form of a chart, you can see charts for each country in the world how COVID cases rose or dropped along with the death tool it brought.

There you go, 6 websites to track and inform yourself about this dreaded pandemic which has managed to change the world and people's lives forever, sadly on the bad side.

As you know, the Windows Media Creation Tool is a great utility in Windows that helps lots of users in installing Windows on their PCs. However, just like any other program in Windows, it also experiences a couple of issues every now and then. So in this post, you will be guided on how you can resolve a particular issue in the Media Creation Tool which is the error 0x80042405-0xA001A. You can encounter this error while creating a USB installation media used in installing Windows 10. When getting this kind of error in the Windows Media Creation Tool, you will see the following error message on your screen:

“We’re not sure what happened, but we’re unable to run this tool on your PC, Error code 0x80042405 – 0xA001A”

The error 0x80042405 – 0xA001A occurs while creating a bootable USB installation drive. This is a common error faced by many users and it has something to do with the USB hardware. To get this issue fixed, here are some suggestions you could check out.

Option 1 – Try to reformat the USB drive

Reformatting your USB drive might help in fixing error 0x80042405 – 0xA001A.

• Open This PC and right-click your USB drive from there then select Format.
• Next, select FAT32 as the drive type and uncheck the “Quick Format” option.
• After that, try to run the Windows Media Creation Tool again and check if the error is fixed or not. But hopefully, it should work since formatting the drive as FAT32 will give the driver a proper type and would resolve any minor issues in the drive.

Option 2 – Copy the Windows Media Creation Tool to the USB drive

If the first option didn’t work, you might want to copy the latest version of the Media Creation Tool to the USB drive. After you do that, you can run it from inside the drive. This is actually a working fix and can definitely get the USB drive to run with Windows inside it so it should resolve the error 0x80042405 – 0xA001A on the Windows Media Creation Tool.

Option 3 – Run CHKDSK to check the drive for errors

When it comes to some issues concerning the hard drive or removable devices, there is a utility in Windows that might help which is called “chkdsk”. This error check utility can help with several issues in the system including the “Diskpart failed to clear disk attributes” error.

• Tap the Win + S keys to open the Search box.
• Then type “command prompt” in the field and from the search results that appear, right-click on Command Prompt and select “Run as administrator”.
• After opening an elevated command prompt, copy and paste the following command and hit Enter:

CHKDSK [volume [[path] filename]] [/F] [/V] [/R] [/X] [/C] [: size]]

Note: In the command given above, “[/F]” will try to fix the system errors while “[/R]” will be the one to fix the bad sectors.

• Now if you are prompted to run CHKDSK after your reboot your PC, just tap Y and reboot your PC.
• If CHKDSK is not able to find any errors, tap the Win + E keys and navigate the access window. From there, right-click on the concerned drive and click on Properties.
• After opening Properties, click on the tab Tools and then click on the “Check” button under the Error-checking section.
• Wait until the process is completed and then restart your computer.

Option 4 – Try checking the hardware components

On the other hand, it is also possible that the issue has something to do with a hardware problem and so you need to check the hardware components on your computer to determine that.

There are cases when your Windows 10 PC can encounter an issue where it gets stuck and will display a message that says, “Preparing Security Options”. If this is happening to your Windows 10 PC, you won’t be able to use your keyboard or even mouse and your screen will only be stuck on the screen as mentioned above. As your computer is still stuck, you will be left with no choice but to shut it down and restart it. Tap the F11 key as soon as your PC powers on. This will take you to the Advanced Startup options where you can carry out some steps. If it still didn’t work, you have to boot your Windows 10 PC into Safe Mode and then try out the troubleshooting options below.

Option 1 – Try using System Restore

You can do this option either by booting into Safe Mode or in System Restore. If you are already in the Advanced Startup Options, just directly select System Restore and proceed with the next steps. And if you have just booted your PC into Safe Mode, refer to the steps below.

• 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 2 – Uninstall the Windows Updates you’ve installed recently

The issue could be caused by Windows Updates so you need to check if it’s indeed the case. The best way you can do so is via Safe Mode.

• Boot your PC into Safe Mode and then tap the Win + I keys to open Settings.
• After that, click on Update and Security and then select Windows Update from the left side menu column.
• Next, select the “View installed update history” option on the right-side column and click on Uninstall Updates which will open a window that will show the list of all the installed updates on your PC.
• From there, select the update you want to uninstall and click the Uninstall button located in the lower right corner of the window.

Option 3 – Try disabling the Fast Startup

• 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 and check if the problem’s fixed.

Option 4 – Try running both the SFC scan and CHKDSK utility

You can do both SFC and CHKDSK using Safe Mode and Advanced Startup options. For Advanced Startup options, click on the Command Prompt option and proceed with the steps. And if you have booted your computer into Safe Mode, follow these steps:

• Tap the Win + X keys or right-click on the Start button and click Command Prompt (admin).
• After that, type in this command and tap Enter to run the System File Checker or SFC – “Sfc /scannow”.
• Alternatively, you can use this command instead if the previous command didn’t work – “sfc /scannow /offbootdir=c: /offwindir=c:windows”.
• Wait until the SFC scan is done with the process and then restart your PC.
• Next, run the CHKDSK utility and once it’s done checking your disk for errors and then reboot your PC to save the changes made.

Option 5 – Try resetting Windows 10

You can reset your Windows 10 PC using either the Advanced Startup Options or by booting into Safe Mode.

• Tap the Win + I keys and go to Update and Security > Recovery.
• Then click on Get Started under the Reset this PC section.
• After that, follow the on-screen instructions with how you want to reset your PC and what files and settings you want to revert.
• Then it will reset your PC by reinstalling it

Option 6 – Try to rename the SoftwareDistribution folder

In this option, the Command Prompt is supposed to be like the one in option 4. You can use both ways there to open the Command Prompt.

• Open an elevated Command Prompt as admin and type in the commands below and tap Enter right after you typed in each one of them
• net stop wuauserv
• net stop bits
• rename c:windowsSoftwareDistribution SoftwareDistribution.bak
• net start wuauserv
• net start bits

Note: You can also rename the SoftwareDistribution folder to “SoftwareDistribution.bak” or “SoftwareDistribution.old” after you boot your PC into Safe Mode.

Option 7 – Try rebuilding BCD

Rebuilding the BCD can help you in fixing the stuck Windows 10.

• You can start by booting into the installation environment for Windows 10 from an installation media.
• After that, click on Repair your computer and on the blue screen, select Troubleshoot and then select the Advanced options menu.
• Next, select Command Prompt and type in the commands below one by one, and tap Enter right after you do so.
• exe /FixMbr
• exe /FixBoot
  • exe /RebuildBcd

In the past, CDs, DVDs, and floppy drivers used to be the primary sources of external storage for many users – that is until the USB storage devices took over. These days, a lot of devices no longer have a built-in CD or DVD writer or reader as it contributes to the thickness of the device. On the other hand, there are still various devices that still come with a built-in CD or DVD writer or reader. However, recently, users who still use CD or DVD on their devices reported a problem where the CD or DVD icon is not visible in the File Explorer as well as in “This PC” or the My Computer page. The cause of this issue is still unknown at the time of writing, but there are still some potential fixes you can try to fix it. You can try to update or roll back the device drivers or apply some tweaks in the Registry Editor. For more details, refer to the given options below.

Option 1 – Try to update or rollback device drivers

The first thing you can try to fix the missing CD or DVD icon is 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. Note that the concerned drivers will be listed under the DVD/CD-ROM drives section as well as the IDE/ATAPI Controllers section.
• From there, look for the following drivers:
  • ATA Channel 0.
  • ATA Channel 1.
  • Standard Dual Channel PCI IDE Controller.
• Now, right-click on each one of the listed drivers and update them all. You could also try to roll them back to their previous versions.

Note: You can also directly download the relevant drivers of your computer from the manufacturers’ website. So if you have an SSD, the issue might be due to an old storage driver.

Option 2 – Try to use the Registry Editor

• Tap the Win + R keys to open the Run dialog box and type “Regedit” in the field and then tap Enter to open the Registry Editor.
• Next, navigate to this registry key: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E965-E325-11CE-BFC1-08002BE10318}
• After that, look for the DWORD values named “UpperFilters” and “LowerFilters”.
• Right-click on each one of these DWORD values and select Delete.
• Now restart your computer and see if it fixes the problem.

Option 3 – Try creating a new Registry entry

There is another option you can try in the Windows Registry to fix the missing icon of the CD/DVD. You can try adding a new entry. How? Refer to these steps:

• 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: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesatapi
• From there, right-click on “ATAPI” and select New > Key.
• After that, name it is “Controller0” and right-click on the sub-key and then select New > DWORD (32-bit) Value.
• Now name it as “EnumDevice1” and double click on it and then set its value data to “1”.
• Click OK and restart your computer to apply the changes made successfully.

Long working hours on a laptop can have some issues with laptop heating and thus slowing down. Today we will take a look at how can you prevent it from heating and keep it in a normal temperature range so it lasts longer and works better.

Close unnecessary programs or browser tabs

Usually, the main reason for high laptop temperature is the heavy and constant workload. Of course, the solution is very simple, turn off unnecessary browser tabs or applications running in the background, and less power will be needed for operation thus directly reducing workload and temperature.

Place it on a hard flat surface

Laptops generally have vents on the side and even under them, these vents, of course, are made so hot air is disposed of through them but if they are covered that will create issues. Placing computers on textiles, pillows, and legs can obstruct their venting holes and increase heat also since they are materials that are not taking heat away.

Your best practice should be placing the laptop onto a hard flat surface so air can flow freely and if you need to keep it in your lap there are lap desks made for this purpose.

Clean the laptop

With some good cleaning, the laptop can stop overheating, and generally, it will be cooler. Vents that has for ventilation can get clogged over large periods of time due to dust which is always present. Compressed air can be a quick easy solution to open the vents and redust it. Other methods include a compressor, vacuum, or brush in order to quickly remove any dust clogs. Taking it into service for complete redusting and paste change is also a great option.

Place it on the dedicated pad

There is some disagreement about using dedicated cooling pads for laptops, some say they are not effective at all, and some swear by them but from my experience good paired laptop and pad can indeed help with cooling it down. Usually, cooling pads will come with fans that will take away heat from the laptop itself reducing its overall heat.

Change your Windows power plan

If your laptop is constantly hot but you are not doing much with him check Windows power settings. There is a good chance it is set to run on a high-performance plan and if this is the case switch it back to a balanced power setting. Power plan like high performance will drain more power and more power will mean more heating. Of course, this will affect performance as well but for regular work that excludes some power gaming, video, and picture manipulations and other demanding tasks this power plan will work just fine.

Take control of the fans inside your laptop

Internal cooling is important and sometimes fans are not running to their full capacity so increasing their speed or changing their plan of work can cool down the computer nicely. Some laptops have fans controlling application already on them, especially gaming laptops but most of them do not. If your laptop does not have it, go to your laptop brand website and see if such an application exists for your model, if it does, download and install it but if there is no such application try general free ones like SpeedFan or Argus Monitor.

Reduce voltage of CPU and GPU

How more power means more heat, reducing the power that CPU and/or GPU take can be reduced inside BIOS by lowering voltage of these 2 components. First, go to BIOS and write down the voltage that is currently assigned to your CPU and/or GPU so you can bring it back if ever needed, also take note that reducing voltage and thus power will not affect negatively your components but increasing it thus overclocking can and will so be careful when bringing voltage back not to overdo it. You can always also reset your BIOS settings to bring them back to factory settings.

Do not use the laptop when charging it

When the laptop is placed on the charger in order to be charged and used at the same time, more power is drawn to it, and since the battery is taking electric charge instead of providing it more heat will be generated now since two different sources will be generating it, the battery itself and computer. When you really can not wait for the laptop to be charged, use it, but turn it off and wait to be fully charged if you can.

The Windows Subsystem for Linus, also known as WSL, is a useful and excellent tool for developers. However, it isn’t without flaws as users can still encounter some errors when using it. One of these errors is the error code WslRegisterDistribution, 0x8007019e,0x8000000d. Although it seems like the error is have something to do with the installation of WSL, it could be a false positive since some users who’ve installed WSL still encountered the same problem. Here’s the context of the error:

“Installing, this may take a few minutes… WslRegisterDistribution failed with error: 0x8007019e/0x8000000d Error: 0x8007019e/0x8000000d The parameter is incorrect. Press any key to continue.”

Error code 0x8007019e or 0x8000000d could be due to the absence of supporting Windows 10 features since the error does not even let one use the WSL-based command line. If you are one of the users facing this problem, then you’ve come to the right place as this post will provide you with a couple of suggestions to fix it. There are two options you can check out to fix the problem, but before you do that, you need to make sure that the Windows Subsystem for Linux feature is enabled. The two options include enabling WSL using the “Turn Windows features on or off” option and using the Windows PowerShell.

Option 1 – Try to enable the WSL using the “Turn Windows features on or off” option

• To get started, search for “Turn Windows Features on or off” in the Start Search and click on the appropriate result to open a dialog box.
• After that, you will see a populated list in the dialog box and from there, look for the “Windows Subsystem for Linux” option.
• Once you find it, select OK. This will search and install the system files needed and ask you to restart your computer.
• Restart your computer. The Linux distro should now work without any trouble.

Option 2 – Try to use Windows PowerShell

The next thing you can do to fix the error code 0x8007019e or 0x8000000d is to use Windows PowerShell.

• Tap the Win + X keys and click on the “Windows PowerShell (Admin)” option to open Windows PowerShell as admin.
• After that, execute this command to enable the Windows Subsystem for Linux feature: Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
• The command you entered will start to search for the required system files and install them.
• If prompted, type “Y” to restart your computer. This should fix the problem.

5 Windows 10 Upgrade Errors

The recently released Windows 10 captivated the mass but its rollout, polished as it might have been, proved everything but seamless. Surf the Internet and you’ll get the gist. People are complaining and they need assistance. Assistance with what you might ask? Many have attempted to make an upgrade but failed after encountering various strange combinations of letters and numbers. These are none other than error codes. If you’ve tried and failed, feast your visuals below as you might encounter one of these 5 Windows 10 Upgrade errors.

Error Code 0x80073712

Encountering error code 0x80073712 in no way implies that you need to throw out your computer system and acquire a new one. Not at all! This error code simply means that a very important file to Windows might have gone missing or corrupted. This file is crucial to Windows update so without obtaining this file, you won’t be able to proceed with the update.

Error Code 0x800F0923

Likely, there are many programs and drivers installed on your computer. They all play a vital role. However, if you’ve received error code 0x800F0923, it might be time to consider or turn your eyes to installed drivers on your system. Why? Error code 0x800F0923 means that there’s a driver or driver on your current Operating System that’s not compatible with Windows 10. There’s clearly a dilemma here.

“We couldn't complete the updates. Undoing changes. Don't turn off your computer.” Or “Failure configuring Windows Updates. Reverting changes”

That’s a pretty odd error but I will say it's slick… That Windows 10 upgrade error is straightforward. Microsoft is just letting you know that they won’t be able to complete the update to Windows 10 and so they are putting your computer back to where it was. How nice of them.

The error messages above are pretty generic and will manifest when the upgrade fails for one reason or the other. To resolve this issue, you’ll most definitely have to decipher what error code was presented. Identifying that will provide a glimpse into exactly what steps you need to take.

The Update Isn't Applicable to Your Computer

I don’t know about you but I strongly believe Microsoft is subtly letting you know that your computer system is old and needs to be thrown out. Also, this update could imply that your PC needs to install important updates to rev you up to the requirements. All relevant updates to your computer must be installed before you can get past this stage.

Error… “Something Happened”

This Windows 10 upgrade error has been the talk of the Internet. In fact, users of Windows OS have been making it a mockery. Clearly, not many have had success after encountering this error. Obviously, “something happened” but it’s just not easy to decipher what went wrong. Microsoft is still trying to figure it out.

Solution

Isn’t it annoying when you get an error message pop up stating ‘Cannot find propsys.dll” or “propsys.dll not found” when you start your computer or open a particular program? The propsys.dll file is crucial to the Windows operating system. This file is located in one of the following locations: "C:\Windows", C:\Program Files, C:\WINDOWS\system32, or C:\Program Files\Common Files". And the propsys.dll error indicates that the propsys digital library file is damaged and corrupt. The propsys.dll error may lead to a very unstable operating system. It may also hamper your ability to access many programs on your computer, lead to program and system crash and slow down the system’s performance. Therefore, to avoid these system threats, it is advisable to fix the error immediately.

Solution

Error Causes

The common causes of propsys.dll file error are:

• Registry problem
• The propsys.dll file is damaged due to a virus or spyware
• Improper software removal
• Hardware Failure

The propsys.dll error message is displayed in either of the following forms:

• Propsys.dll not found
• Cannot find [Path]propsys.dll
• This application failed to start because propsys.dll was not found. Reinstalling the application may fix this problem
• The propsys.dll file is missing

Further Information and Manual Repair

There are many ways to fix the propsys.dll error. However, for optimum results from the fix, you must first identify the cause of the error and then choose the solution accordingly.

• Recommended Solution for Registry Issue

If you use your system daily the resulting wasted/invalid/junk entries may dilate the registries. This can result in registry malfunctioning which may result in a propsys.dll error on your screen. When this happens, it is advisable to use a registry cleaner to fix the problem. Registry cleaner helps clean up the junk entries and repairing the corrupted registries. For this, you will first have to download a registry cleaner repair tool. Download and install the software on your computer. After downloading it, click the start scan button to run. This helps scan and diagnose system errors on your computer in seconds. Once the scanning is complete, click on the fix button to repair the registry problem.

• Recommended Solution for File Damage and Corruption

Use the ‘System Restore’ option to restore corrupt and damaged files.  The ‘System Restore’ function will help you get a fresh copy back and simultaneously help fix the error. Here’s how to use and access the ‘System Restore’ function on your computer: Simply go to the start menu and in the search box type restore. Once you type, it will show you the system restore option. Now select ‘choose a different restore point’. After this, you will be presented with a list of restore points. Choose a point that you believe happened before the propsys.dll error. Confirm your selection and restart. Another alternative solution for file damage is to run a virus scan of your entire system; the damage could be related to a virus or malware infection.

• Recommended Solution for Hardware Failure

If a propsys.dll error occurs due to hardware failure, then it is advisable to update the drivers for hardware devices that you think are related to propsys.dll. For example, if you receive the propsys.dll error when you play a 3D video game, then try updating the driver for your video card.

As you know, Windows Hello offers you quick access to computers since you can log in to your Windows devices three times faster compared to passwords with the help of the camera via Face recognition and fingerprint reader. This way, Windows Hello will recognize you right away. However, there are also times when you might encounter some problems when using Windows Hello. For one, if you are trying to add the PIN method to Windows Hello on your Windows 10 computer but you suddenly encountered an error code of 0x801c004d or if you are trying to use your existing pin and you encounter an error code of 0x80070490 along with an error message that says, “Not recognized”, then read on as this post will guide you on how you can fix both of these errors. Here is the complete content for both errors:

• “0x801c004d – Unable to enroll a device to use a PIN for login”
• “0x80070490 - Not recognized, Pin and fingerprint are no longer options for signing in”

If you got any of these two errors, there are several potential fixes you can check out to resolve them. You can try to check for any Windows Updates or create the PIN again or check the CNG Key Isolation Service. You could also try to reset the TPM or create a new User Account. For more information, follow the instructions provided below.

Option 1 – Try checking for any available Windows Updates

The first thing you can do is to check for any available Windows Updates. It is possible that your computer may be outdated and is the reason why you’re having troubles with Windows Hello. To check for Windows Updates, just go to Settings and from there, head over to the Update and Security section and click on Windows Updates located on the left pane, and then click on the Check for Updates option. Wait until the process of checking updates is completed and if it finds new updates, install it. After you install the new Windows Updates, check if you can now add the PIN on Windows Hello or not.

Option 2 – Try creating the PIN again

The next thing you can do is to create the PIN again by signing out and signing in again and then try creating the PIN once more. If this does not work, you can try restarting your computer and creating the PIN again. You could also try removing the PIN and then change it.

• Remove the PIN by going to Settings > Accounts > Sign-in options.
• From there, go to the PIN section and click on the Remove button.
• You will be asked to verify your account to proceed in removing the PIN, enter your credentials.
• Restart your computer and then set up a new PIN.
• Once you’re done, restart your computer and check if the error is gone now.

Option 3 – Try checking the CNG Key Isolation Service

The CNG Key Isolation Service is the one that stores and uses long-lived keys in a secure process complying with the common criteria requirements and it is possible that the error could be related to this service. This service is hosted in the LSA processes and provides key process isolation to private keys and associated cryptographic operations as required by the common criteria. Thus, you need to check this service to see if it’s the one that’s causing the error.

• Tap the Win + R keys to open the Run dialog box and type “services.msc” in the field and hit Enter to open the Windows Services Manager.
• Next, locate the “CNG Key Isolation Service” and once you find it, double click on it to open its Properties box.
• After opening its Properties, check its Startup type and select Manual. This is the default setting and if it is Disabled, then it’s no wonder why you’re getting errors with Windows Hello, thus, you need to enable it.
• Once done, restart your computer and check if you can now add the PIN to Windows Hello. If you still get the error, then you might want to try setting the CNG Key Isolation Service from Manual to Automatic and then click on the Start button and see if it fixes the error or not.

Option 4 – Try to reset the Trusted Platform Module or TPM

You might also want to try resetting the Trusted Platform Module or TPM to fix the error. You can do this by opening Windows PowerShell and then executing the “Clear-Tpm” command. After that, check if the error is now resolved.

Option 5 – Try to create a new User Account

You could also try to create a new User Account on your Windows 10 computer to fix the Windows Hello error. Once you have created a new local user or administrator account in Windows 10, check if you are now able to add the PIN from this newly created user account.