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Guide to Fixing PFN_LIST_CORRUPT Blue Screen

PFN_LIST_CORRUPT Blue Screen - What is it?

PFN_LIST_CORRUPT is a blue screen of death error code. It occurs when the PFN (Page Frame Number) list becomes corrupt. The Page Frame Number is basically used by your hard drive to determine your location of each one of your files on the disk.

This error may occur when starting up the program or while using it. Blue screen of death errors occurs without any warnings. The program disrupts all of a sudden and the computer screen turns blue.

Solution

Restoro box imageError Causes

PFN_LIST_CORRUPT Blue Screen error may occur due to multiple reasons. Some of the common reasons include:

  • Hardware problems
  • Device driver issues
  • Registry problems
  • Viral Infection

It is recommended to resolve the PFN_LIST_CORRUPT Blue Screen of Death error immediately without any delay virtually because this error can be quite fatal to your PC.

It can pose serious threats to your system like system freeze, crash, failure, and valuable data loss. Furthermore, if the error is related to viral infection, it can expose you to privacy issues, data breaches, and cybercrime too.

Further Information and Manual Repair

This is a critical PC error but easy to resolve. You don’t need any technical expertise to fix this error on your PC. Here are some quick and easy methods to resolve PFN_LIST_CORRUPT Blue Screen error:

Method 1: Install Compatible Device Drivers

Sometimes when new hardware is added to the PC, you need to install updated versions of the device drivers to ensure there are no incompatibility issues.

Incompatibility between the hardware and device drivers may generate PFN_LIST_CORRUPT Blue Screen of death error on your screen. To resolve, it is advisable to download and install the latest updated versions of the device drivers from the manufacturer’s website.

Method 2: Scan for Viruses

PFN_LIST_CORRUPT Blue Screen of Death error may occur due to viral infection too. Viruses and spyware enter your PC when you log on to unreliable websites and download programs from there or open phishing emails on your PC.

These viruses corrupt and damage programs and files resulting in such errors. To fix the issue, you need to install a powerful antivirus and ensure all kinds of viruses and spyware are detected and removed from your system.

Method 3: Clean and Restore the Registry

PFN_LIST_CORRUPT Blue Screen error indicates poor PC maintenance. When you don’t clean and remove unnecessary and obsolete files like junk files, bad registry keys, cookies, internet history, temporary files, and invalid entries from the registry, the registry overloads and gets damaged.

These files accumulate taking up a lot of disk space and also corrupt system files. If these files are not removed timely, it results in registry issues like a blue screen of death errors and run-time errors. To remove these files and clean the registry, you need to install a powerful registry cleaner.

Whether the underlying cause for PFN_LIST_CORRUPT Blue Screen of Death error on your PC is viral infection or registry issues, to resolve the BSOD error code in seconds download Restoro.

This is a cutting-edge and multi-functional PC fixer deployed with both an antivirus and a registry cleaner. Additional features include a system optimizer too. It is user-friendly and easy to operate. You can download it on all Windows versions without any hassle. It is safe and bug-free.

The registry cleaner feature scans and removes all unnecessary files, cleans and repairs the registry while the antivirus utility simultaneously removes all kinds of malicious software including spyware, viruses, Trojans, and malware.

Click here to download Restoro now and resolve the PFN_LIST_CORRUPT Blue Screen of Death error immediately!

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What Is a VPN and What Can It Do For You?

Have you been feeling anxious in the digital space? Feeling like you have a million eyes on you each time you visit a website? It can definitely make you uneasy. Luckily there’s an easy fix, and it’s called a VPN.

In this article we’ll take you through the basics of what a VPN does and some of the biggest benefits you can reap from buying one.

VPN: definition and how it works

VPN stands for Virtual Private Network, so its name already says a lot about what it does. 

A VPN is specialized software that keeps your browsing private and secure. Essentially it hides your identity, preventing possible cyberattacks and data theft. This is especially important in cases of public network use, where you’re highly exposed to potential threats.

To be more specific, this software encrypts your Internet Protocol (IP) address by filtering it through a server hosted by the VPN provider first. That way, it prevents your Internet service provider, third parties and lurking online thieves from tracking the actual you.


Credit: FLY:D on Unsplash

Some providers, such as Surfshark VPN with its IP Rotator feature, even make it a habit to frequently change your IP address to further protect your identity. With most VPN providers, you can also appear to be in a completely different country, adding to your disguise.

There are tons of advantages you can look forward to if you decide to use a VPN. Take a look at some of the crucial ones.

Benefits of using a VPN

When choosing a VPN, you can find both free and paid options. We recommend you go with the paid ones, since they have stronger security, encryption and data protection, as well as more advanced features. Free VPNs come with limitations and risk of malicious attacks on the software itself.

You can choose to buy a singular VPN service or opt for antivirus software that has a VPN built in, for example Bitdefender’s Ultimate Security plan. That depends on what you use your computer for and how much. 

When you pick one, here’s what it can do for you.

1. Access region-specific content

When we said you could change your location, we meant it. Say you’re using a streaming service and a show you desperately want to watch isn’t available in your country. You can use your VPN to make it look like you’re browsing from a country where it’s unlocked.

This option is also convenient for gamers who want to access maps, skins and other in-game items unavailable in their location.

Surfshark VPN
Surfshark VPN (Credit: Dan Nelson on Unsplash)

In addition, you can use this powerful feature when you’re traveling to a region where some of your favorite content may not be accessible.

Do keep in mind that you need to read the Terms and Conditions (yeah, we know - who does that?) of your games and services before doing this, since you could end up getting a penalty. It’s also important to remember that there are entire countries that have strict regulations or even bans on VPNs, for example Belarus, Russia and China. So make sure to be very cautious with your VPN use, friends.

2. Browse like no one’s watching

VPNs shield your browsing habits from prying eyes on the web. Those can be malicious hackers or just third-party cookies tracking your every move to later bombard you with targeted ads. For example, Surfshark VPN features a Cookie blocker that blocks all cookie-related pop-ups and lets you browse in peace (and secret). It works even when the VPN is turned off, which is also pretty neat.

In addition, their CleanWeb 2.0 technology makes sure ads and especially malware don’t stand a chance at all, since they’re blocked before they can even load.

The inability of sites to track your browsing means they can’t collect and analyze any of your data. So, your personal information - or your company’s information in case that’s what you’re using your computer for - is entirely hidden and secure.

3. Save money

It’s well-known that the prices of certain items and services vary based on your location, browsing time, age and many other factors. This most commonly goes for airline tickets and hotel stays.

You can use your VPN to avoid high prices and surcharges. Clear all cookies, turn on your VPN and visit an online shopping site to check out their prices. Then compare your findings with the offers you see when your VPN is off, when you spend a long time on the site or have an active account with the company. 

Sometimes this can really help you find the best deals and avoid breaking the bank. But again, check the Terms and Conditions before you purchase something using a VPN.

4. Secure your smart home

The more smart devices you have connected to your network, the more exposed you are to potential cyberattacks. Phones and computers are generally designed to be decently secure even without a VPN or antivirus, but smart home devices leave a lot to be desired in that regard. 

Protecting your home network with a VPN software means all devices connected to it are secure, be it an air purifier or Alexa.

Credit: Bence Boros on Unsplash

5. Prevent connection slowdown

Your ISP can intentionally slow down your internet speed based on how much data you’ve consumed (data throttling) or your activities online (bandwidth throttling).

But with a VPN, what kind of data you send and receive and how much is entirely hidden. Therefore, if your ISP can’t see you, they can’t control you and they can’t throttle down your speed.   

The bottom line

You can never be too safe online. So definitely think about getting yourself a solid VPN to pump up your privacy and security as much as you can. And if you have any questions or need help choosing the perfect software for you, feel free to reach out to us.

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Blinking or Flashing Desktop After login - Windows 10 Upgrade

Blinking or Flashing Desktop After login - What does it mean?

Upon updating to Windows 10, some users might encounter a blinking or flashing desktop after logging in. This will result in a repetitive restarting of explorer or you won’t be able to make the start menu and shortcut keys work. In addition, the network icon might not appear in your taskbar as well. Other Windows 10 error messages include error code 0xc000021a.

Solution

Restoro box imageError Causes

Your blinking or flashing desktop after logging in might be the result of problems with the bushell.dll shell extension, which is a part of the Norton Security Suite. Another possible cause for this annoying problem is an issue with your display driver since not all systems will use the same display driver and will depend on what graphics card you use.

Further Information and Manual Repair

In fixing the bothersome blinking or flashing desktop after logging in problem, you can do a manual repair method to address the root problem. You need to be familiar with the Windows command line to successfully go through the process. However, if you are not knowledgeable or confident enough to do this on your own, it would be best to seek help from a professional. Or, you might want to consider using an automated tool to solve the issue.

You need to identify first what’s causing the blinking or flashing of your desktop after login to properly address the issue. The following methods can be done if your issue is caused by bushell.dll shell extension issue:

Method One: Forcefully Terminate Process

  1. Press on Ctrl+Alt+Del then select Task manager
  2. Start a Command Prompt as an administrator by choosing the File menu then Run New Task.
  3. Type exe. Make sure to tick the checkbox “Create this task with administrative privileges.”

NOTE: Text input is most probably affected by the explorer restarts so you might need to repeatedly type some letters or to carefully input texts.

  1. In the Command Prompt, type taskkill /f /im explorer.exe. This will stop the blinking or flashing.
  2. Type cd “Program Files” afterward, type dir /s bushell.dll to locate where the dll is. (For example, purposes, use c:\program files\Norton Security Suite\Engine6422.5.2.15 as the location)
  3. If the dll file is not found, you can try repeating step 5 but this time, use “Program Files (x86)” However, you can proceed with the next step if you already located where the bushell.dll is.
  4. Type cd ”c:\program files\Norton Security Suite\Engine 6422.5.2.15” to change the name of the directory you found the dll in.
  5. Type ren bushell.dll bushell-crash.dll
  6. Restart now the system by typing shutdown /r /f /t o in the command line.

Method Two: Uninstall Programs

  1. Log out then go to the sign in screen
  2. Press the Shift key as you simultaneously click on the Power button on the screen.
  3. Continue pressing on the Shift key as you click
  4. Continue pressing on the Shift key as you wait for the Advanced Recovery Options menu to appear.
  5. Once the Advance Recovery Options menu appears, click on Troubleshoot then select Advanced options.
  6. Click on the Startup Settings then select
  7. Boot on Safe Mode by pressing 4 on your keyboard.
  8. Log in then press Windows key + X.
  9. Select the Device Manager then expand Display Adapter.
  10. On your Display Adapter, right-click then select
  11. Exit Device Manager
  12. If in case you also have an older Antivirus utility, you should uninstall it as well.
  13. Restart

NOTE: You might need to download the latest Video Driver on a working computer. Save it in a thumb drive then copy and install it on your computer. If in case there is no native Windows 10 driver, you can also download the latest Windows 7 or Windows 8.1 video driver. Afterward, install it in compatibility mode.

Method Three: Use Microsoft System Configuration Utility

  1. Log out then go to the sign in screen
  2. Press the Shift key as you simultaneously click on the Power button on the screen.
  3. Continue pressing on the Shift key as you click
  4. Continue pressing on the Shift key as you wait for the Advanced Recovery Options menu to appear.
  5. Once the Advance Recovery Options menu appears, click on Troubleshoot then select Advanced options.
  6. Click on the Startup Settings then select
  7. Boot on Safe Mode but this time, choose 5 to start in Safe Mode with networking.
  8. Check if your problem is present or not in Safe Mode. If not, then you are on the right track.
  9. Press on the Windows key + R then type msconfig to start up your exe file.
  10. Click on the Services tab then choose Disable All. Afterward, click on
  11. Once you’re prompted to reboot your computer, go ahead and reboot in Normal Mode. Check if the issue is still present.
  12. If the blinking or flashing desktop after login is gone, then you can just do a process of elimination.
  13. Start-up on your exe again then begin bringing up services a few at a time.
  14. You can turn on all other services except for the following which causes the blinking or flashing desktop after login problem: Problem Reports and Solutions Control Panel Support •Windows Error Reporting Service.
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Fix ERR_UNSAFE_PORT error on Chrome
As you know, one of the most useful web browsers all over the globe is Google Chrome. However, it is not without flaws as you could encounter errors while using it. One of these errors is the ERR_UNSAFE_PORT error. This kind of error is caused by the data being accessed using a port that isn’t recommended. When you encounter this kind of error in Chrome, you will see the following error message on your screen:
“The webpage is not available, The webpage at <Address> might be temporarily down or it may have moved permanently to a new address. Error code: ERR_UNSAFE_PORT”
In this post, you will be guided on how you can fix the ERR_UNSAFE_PORT error in Google Chrome on your Windows 10 computer. You can try to set allowed ports or reset or reinstall Google Chrome. For more details, refer to the given options below.

Option 1 – Try to set allowed ports

  • To get started, open Google Chrome.
  • After that, go to the Shortcut tab and type the following after the whole address in the field named Target: --explicitly-allowed-ports=xxx
  • It should look like this “C:/Documents and Settings/User/Local Settings/Application Data/Google/Chrome/Applicationchrome.exe --explicitly-allowed-ports=6666”.
  • Now click on Apply and click OK to save the changes made.

Option 2 – Reset Chrome

Resetting Chrome can also help you fix the error. This means that you will be restoring its default settings, disabling all the extensions, add-ons, and themes. Aside from that, the content settings will be reset as well and the cookies, cache, and site data will also be deleted. To reset Chrome, here’s what you have to do:
  • Open Google Chrome, then tap the Alt + F keys.
  • After that, click on Settings.
  • Next, scroll down until you see the Advanced option, once you see it, click on it.
  • After clicking the Advanced option, go to the “Restore and clean up option and click on the “Restore settings to their original defaults” option to reset Google Chrome.
  • Now restart Google Chrome

Option 3 – Try to clean reinstall Chrome

There are instances when programs leave files behind after you’ve uninstalled them and the same thing can happen to Chrome so before you reinstall Chrome, you have to make sure that you have deleted the User Data folder. To do so, refer to the following steps:
  • Hit the Win + R keys to open the Run dialog box.
  • Next, type “%USERPROFILE%AppDataLocalGoogleChromeUser Data” in the field and hit Enter to open the User Data folder.
  • From there, rename the default folder and name it something else, e.g. “Default.old”.
  • After that, install Google Chrome again and check if the issue is now fixed.
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How to Fix Error Code 0xc1900106 on Windows 10

Error Code 0xc1900106  – What is it?

One of the most common errors encountered by Microsoft users upgrading from Windows 7 or Windows 8/8.1 to Windows 10 is the Error Code 0xc1900106. Microsoft users experience a failure in the installation process. Either they will be notified that the installation process was ended but failed or that Windows is not able to install the update.

Solution

Restoro box imageError Causes

More and more Windows users are having trouble upgrading their operating system to Windows 10. There are a lot of errors being encountered by users and one of them is the Error Code 0xc1900106. This error is normally due to the misconfigured system files. If a Windows user encounters this error, most likely their device has some registry problems.

Further Information and Manual Repair

Fixing error code-related issues could be best resolved to do manual repair methods. Applying repair methods manually can help Windows users address the root causes of the errors they encounter, as well as apply definite solutions to rectify the issue.

Most Windows users can be able to implement manual repair methods themselves but there are some cases where help from a Windows professional is needed. If you’re not a very tech-savvy person and not confident performing the manual repair methods yourself, it would be advisable to seek help from a professional Windows technician who is knowledgeable enough to address the errors or problems you are encountering. However, if you don’t want to resort to seeking help from a professional, you can also consider using a powerful automated tool.

In trying to fix Error Code 0xc1900106, here are the following manual repair methods you can take:

Method One: Custom Installation

  1. Make a backup of your personal files
  2. Users of Windows 8/8.1 should Refresh first then proceed to upgrade.
  3. If the Refresh process does not work, reset your device then try again.
  4. If resetting your device still does not work, you can proceed with a custom installation.
  5. When your Windows installation media is ready, you need to choose to boot from CD, DVD, or USB drive to begin setup. (For example purposes, this article will discuss booting from DVD).
  6. When your device is all set to boot from DVD, you will be prompted to Press any key to boot from CD or DVD…
  7. Once you’ve pressed any key, the screen will show the Windows logo which might take a while. No need to worry though, as long as you can see the indicator, you’re good.
  8. Choose your Language, Time, and Keyboard method from the drop-down menu then hit Next.
  9. Click on the Install Now button then wait until Setup begins.
  10. Tick on the I accept the license terms check box then select Next.
  11. Choose Custom: Install Windows only (advanced)
  12. Choose the Primary partition then select Next. You will be prompted by the following warning: The partition you selected might contain files from a previous Windows Installation. If it does, these files and folders will be moved to a folder named Windows.old. You will be able to access the information in Windows.old, but you will be able to use your previous version of Windows. Just click the OK button then wait as the Windows continue to install. Windows will restart once this phase of the setup completes and will reboot into setup once again.
  13. At this point, Windows will detect and install your hardware. Once this finishes, Windows will restart again.

Method Two: Reset Windows Update Components

  1. From your device’s desktop, hit Windows key + X to open the command prompt as admin.
  2. Once the command prompt window appears, you can type or copy and paste the following commands (all at once):

net stop wuauserv net stop cryptSvc net stop bits net stop msiserver ren C:WindowsSoftwareDistribution SoftwareDistribution.old ren C:WindowsSystem32catroot2 catroot2.old net start wuauserv net start cryptSvc net start bits net start msiserver pause

  1. Exit the command prompt.
  2. After you reset the Windows Update components, see if you receive Windows Updates which includes the firmware updates for your computer.

Method Three: Ensure Windows is Updated

  1. If you have an antivirus, make sure to disable it during the upgrade process.
  2. Run Windows Update to check if the system is updated.
  3. Ensure that the latest firmware and drivers are installed. To be able to do this, go to the computer manufacturer’s website or you can also try contacting company support.
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Upcoming Windows 11 features

Coming in October for insiders and in November for all in the update, Microsoft has prepared a series of updates which they call an "additional set of experiences"

These updates are looked upon by Panos Panay, a vice executive president at Microsoft & chief product officer for Windows and devices as sort of makeup tests. They will consist of new additions with the biggest one being a tabbed version of File Explorer.

windows 11 transparency off

File Explorer received a UI makeover in the last update but the tabbed interface was missing which was expected by many users so it will come in following the next update.

The rest of the features that we will receive are an updated Photos application, Suggested Actions in the Windows Shell, Overflow menu for the taskbar, and improved Nearby Share.

The tabbed File Explorer interface is essentially File Explorer’s version of Sets, the tabbed window interface that Microsoft tested out several years ago. In testing, the tabbed interface proved handy for moving and copying files, and we’d expect the same once the feature formally goes live. The difference between Sets and the tabbed File Explorer interface is Sets allowed for multiple applications to be clustered together via tabs.

Photos app will include a “new photos-managing experience that brings a gorgeous gallery, simplifying browsing, finding, management and consumption of your collection of photos.” It will allow “easy backup to OneDrive” and a “delightful Memories experience.”

As for other features, nothing specifically was said except giving just some tips on what will they bring, it is obvious that File Explorer and the photos app were the main focus for MS in this upcoming update.

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Run as administrator is not working
Recently, a number of users reported that they were not able to use the “Run as administrator” context menu option when they tried using it or opening a program with administrator privilege. If you are one of these users facing this problem, then you’ve come to the right place as this post will guide you in fixing this issue. At the time of writing, it isn’t clear what the cause of the issue is but there are potential fixes you can try to fix the problem. You can try turning on the User Account Control or clean up the Context Menu items change the Group Membership. On the other hand, you can also perform both SFC and DISM scans via Command Prompt or troubleshoot the problem in a clean boot state as it is possible that some third-party programs are the ones that are causing the problem. You could also run an anti-malware scan using Windows Defender or your antivirus program.

Option 1 – Try to turn on the User Account Control

When you open a program with administrator privilege, the User Account Control or UAC prompt will pop up asking you to confirm the permission. However, if you have disabled the User Account Control by mistake or some malware has disabled it, then it’s no wonder why the “Run as administrator” option is not working. Thus, you need to check if UAC is turned on or not. All you have to do is go to the User Account Control settings.

Option 2 – Try changing the Group Membership

  • First, you need to sign in with your administrator account or ask your administrator to sign in for you. So if you only have a Standard User account, you have to add that account to the Administrators group.
  • In the taskbar search box, type “netplwiz” and check the search results.
  • From there, select your user account and click the Properties button.
  • After that, go to the Group Membership tab and select Administrator.
  • Now click on the Apply and OK buttons to save the changes made and then sign in to your computer again and see if the “Run as administrator” option is working or not.

Option 3 – Try to create a new Administrator User account

If you have a standard account, you can try creating a new account but this time, you create an administrator user account and then see if you can now use the Run as administrator option or not. Note that you have to sign in with your main account before you can create an admin account.

Option 4 – Run the DISM tool

You can run the DISM tool as well to help fix the problem with the “Run as administrator” option. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.
  • Open the Command Prompt with admin privileges.
  • Then type in the following commands and make sure to hit Enter right after you type each one of them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • exe /Online /Cleanup-image /Restorehealth
  • Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 5 – Perform a System File Checker scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the problem with the “Run as administrator” option on your Windows 10 computer. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.
  • Tap Win + R to launch Run.
  • Type in cmd in the field and tap Enter.
  • After opening Command Prompt, type in sfc /scannow and hit Enter.
The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:
  1. Windows Resource Protection did not find any integrity violations.
  2. Windows Resource Protection found corrupt files and successfully repaired them.
  3. Windows Resource Protection found corrupt files but was unable to fix some of them.
  • Once done, restart your computer.

Option 6 – Put your computer in a Clean Boot State

You can also troubleshoot the problem in a Clean Boot state. It could be that there are some third-party applications in your computer that are preventing you from using the “Run as administrator” option and to isolate this possibility, you need to boot your computer in a Clean Boot State and then try to use the Run as administrator again. Putting your computer in this state can help you identify which program is the culprit and thus isolates the problem. In a Clean Boot state, your computer will start using only the pre-selected minimal set of drivers and startup programs. Note that you have to disable and enable one process at a time.
  • 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.)
  • After you’ve set your computer into a Clean Boot State, try to check if the error is now fixed and that you can now view the Properties.

Option 7 – Try scanning your computer using Windows Defender

As mentioned, if your computer was recently infected with some malware, it is possible that the malware changed the User Account Control settings which is why you’re not able to use the Run as administrator option. Thus, you need to scan your computer using Windows Defender.
  • Tap the Win + I keys to open Update & Security.
  • Then click on the Windows Security option and open Windows Defender Security Center.
  • Next, click on Virus & threat protection > Run a new advanced scan.
  • Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.
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How to Fix Error Code 0x80073afc

Error Code 0x80073afc - What is it?

Error code 0x80073afc deals with an antivirus program first built into Windows 8/8.1 This error occurs when Windows Defender, the built-in anti-virus software in Windows 8/8.1 and higher, does not start automatically and users attempt to manually start the program. During the initialization period of the program start-up, something goes wrong and users get a 0x80073afc Error message. The error message states there was a problem with the initialization of the program. Windows Defender provides protection of your computer and it is advised by the Microsoft Corporation that you ensure it starts up automatically on every start-up.

Solution

Restoro box imageFurther Information and Manual Repair

Users have found several manual repairs that have fixed the problem without needing to contact technicians for extra help. While the methods below should solve your problem easily, if this is the first time you have encountered the issue you may want to do a simple restart. This has fixed the problem for some users and is the easiest first troubleshooting move. If it doesn’t work move on to the methods listed below, which are easily completed without extra help.

Before trying any of these methods, please make sure that you are logged into a profile that is listed as the administrator of the computer of his administrative powers enabled. If this is not the case you will not be able to complete the following methods. Please log out and log back in on the administrator profile.

Method 1:

First, check to see if you have a third-party anti-virus program installed on your computer. Some users believe that the built-in Windows Defender program is not powerful enough to handle the safety of their computer so they usually download a third-party program. However, that program may have caused a conflict with Windows Defender and may not allow it to open. If you do have a third-party program installed, try uninstalling it then manually starting Windows Defender.

Method 2:

If method one does not work, you may be infected by malware or a virus that has tampered with the settings on your computer and will not allow Windows Defender to start automatically or manually.

First, open Run by holding the “Win” key and pressing the “R” key. Then type “Regedit”. The program will ask for permission to follow through with this action. Click on “Yes” and the Open Registry Editor will open.

Find the HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersionImage File Execution Option and check to see if there are any files similar to MSASCui.exe or MpCmdRun.exe. If there are any file entries that resemble that, you will want to right-click on them before selecting the “Delete” option. If you do not see any entries that match, this is not the issue with your Windows Defender and you will want to try another method.

The Registry on your computer is very important. It helps tell your computer what programs are safe to run, what programs should be run, and what programs should not be run. If it is tampered with by a virus or Malware, multiple system operations can be affected.

However, if you did find similar file names, and you deleted them, try to start Windows Defender manually. If it does not work again, move on to the next method. 

Method 3:

If the first two methods do not work for your issue, and you are still receiving error code 0x80073afc when attempting to start Windows Defender, this step should solve the problem if you have Restore Point installed on your computer, which you most likely do.

For this method, we will be restoring your computer to a previous Restore Point. First, just like in method two, hold the “Win” key and press the “R” key. This will open run. Next type “Rstrui.exe” and click “ok”. After some time, you will see System Restore Windows. Click “Next” and select the restore point that you would like to go back to. After your computer has restored to the point you selected, check to ensure that Windows Defender has started correctly.

If the above methods aren't able to rectify the issue, you might have to download and install a powerful automated tool to get the job done.

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Fix Hello Errors 0x801c004d or 0x80070490
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.
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Blu-ray player does not recognize the disc
So, you just made some popcorns, dimmed light, relaxed in from of the TV, pressed play on your application and Blu-ray drive can not read your movie. Your movie night failed sadly, but there is hope and in this article, we are going to explore and offer you solutions on what to do when something like this happens so you do not miss another movie night and some hard-earned relaxation. Please note that in this article we are assuming that you are using a Blu-ray player on your PC, so some of the solutions presented are meant only for this case. So the first thing that you are supposed to do is to check the disc itself. You can turn the disc around and visually check the disc for fingerprints and scratches which can be fatal for disc playing, alternatively, you can try to play the same disc on another device and if it fails there also it is not the disc, it is your drive. So if it is no issue with the disc let's see that seems to be a problem with the drive. The common thing that could stop disc reading are cables, check all connections and cables in the back of your device to be sure that everything is plugged in correctly and nicely. After checking cables if the issue persists lens cleaning is the next step. Over time lens from the Blu-ray, the device becomes dirty and dust accumulates on it, there are special cleaning discs on market made especially for this purpose, to clean the dirty lens of optical devices. If you have one put it in and clean your lens. After lens cleaning with a specialty disc, a good idea would be to use compressed air in a can to reduce the dust inside so no excess dust will accumulate quickly again on the lens itself.

So the device is cleaned and checked and still no disc playing?

Update firmware first. In order to accomplish this visit your device manufacturer's website and follow instructions there on how to upgrade firmware. If this did not helped also update or reinstall device drivers. Go to device manager and update drivers for your device by right-clicking on it and choosing update driver. If none of the things helped, go to command prompt as administrator and type in SFC /scannow, leave the process to finish, and reboot.
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How to Fix Windows Update Error 0x800706be
Error 0x800706be is a Windows error code that pops up when a particular system file is having some issue. This error pops up on other Windows-compatible software as well as driver vendors. This error signifies a misconfigured or corrupted system file so you might encounter this error in different instances. For instance, this error might pop up when you click the audio icon from the system tray or when the Windows Upgrade or Update has failed. Needless to say, this error can be caused by different factors. Anyhow, this post will show you what you can do to fix the problem when the error pops up during a Windows Update or Upgrade. If you are seeing this error when you try to install the latest Windows updates, it will show a Windows Update failed message and you obviously won’t be able to update your Windows 10 PC until you fix this error. You will keep seeing this error even when you try to reboot or update it a couple of times. As mentioned, the error code 0x800706be appears when there is something wrong with your system files – they are either corrupted or misconfigured. This error is most likely caused by the corrupted Windows Update Components. Corruption of these files is not unusual and it could happen anytime. So since the Windows Update files or components are corrupted, you won’t be able to successfully install the latest Windows Updates. Here are some options you can try to fix the problem.

Option 1 – Try running the Windows Update Troubleshooter

Running the Windows Update troubleshooter is one of the basic things to do when facing any kind of issue with Windows Updates. As long as it can it will detect the issue and automatically solve them so that there will be no need for you to do more technical steps to resolve the issue.
  • Tap the Windows and R keys on your keyboard to open the Run dialog box.
  • Then type in “control.exe /name Microsoft.Troubleshooting” in the field and tap Enter to open the Windows Update Troubleshooter.
  • After that, click Windows Update and follow the next on-screen instructions.

Option 2 – Try resetting the Windows Update Components

This is another basic thing to do in fixing the error 0x800706be. It is also one of the solutions that mostly worked for users who also got this error when trying to install Windows updates. And since the problem is caused by corrupted Windows update components, the most logical thing to do is to delete old files and reset components. To reset the Windows Update components, follow the given instructions below carefully.
  • Tap the Windows key once.
  • Then in the Windows Start Search, type in “command prompt”.
  • From the search results displayed, right-click on Command Prompt and select the “Run as administrator” option.
  • After that, type in “net stop wuauserv” and tap Enter.
  • Next, type in “net stop cryptSvc” and tap Enter.
  • Then type in “net stop bits” and tap Enter.
  • Type in “ren C:\Windows\Software\Distribution Software\Distribution.old” and then tap Enter.
  • Afterward, type in “C:\Windows\System32\catroot2\Catroot2.old” and tap Enter.
  • Next, type “net start cryptSvc” and tap Enter.
  • Then type “net start bits” and tap Enter.
  • Finally, type in “net start msiserver” and tap Enter.
  • Now close Command Prompt and then try updating Windows once more.
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