Fix Windows Activation Error 0xC004F211

If VirtualBox suddenly displays a black screen without any text or mouse cursor when you are trying to boot a guest operating system, then read on as this post will guide you in fixing such an issue. This black screen occurs when Windows 10 failed to provide a specific setting that VirtualBox requires. Consequently, you will not be able to install or use any guest operating system in VirtualBox even if your PC has virtualization support, the best thing you can do now is to fix this black screen issue. There are two ways you can fix this black screen in VirtualBox, you can either try to disable Hyber-V or disable 3D Acceleration. For more details, refer to each one of the given options below.

Option 1 – Try to disable Hyper-V

Hyper-V is a built-in virtualization tool available in Windows that helps users in creating a virtual machine as well as install a guest operating system without using any third-party tool like VMware, VirtualBox, and many more. However, the problem with this virtualization tool is that some systems cannot run it and VirtualBox simultaneously which is most likely why the screen abruptly turns into black. Thus, you have to disable Hyper-V to resolve the problem. How? Refer to these steps:

• In the Start Search, type “Turn Windows features on or off” and then click on it from the results.
• Once you’ve opened the Windows Features window, remove the checkmark from the Hyper-V box.
• Click the OK button and then restart your computer.
• Now try to use VirtualBox again and see if the problem is fixed.

Option 2 – Try to disable 3D Acceleration

The guest operating system will use the host computer’s GPU to render 3D graphics if you enable the 3D Acceleration for the virtual machine. To simply put it, it will enhance the graphics of the virtual machine and will let you use 3D graphics. Although it may seem nice, it can actually cause the black screen to appear as well so you might have to disable it to isolate the problem. In fact, a lot of operating systems have failed to use the 3D Acceleration for the guest operating system because of this black screen issue. To disable it, follow these steps:

• Open VirtualBox on your computer and select the virtual machine.
• Next, click on the Settings button and go to the Display section.
• After that, look for a checkbox named “Enable 3D Acceleration” located on your right-hand side and then uncheck it.
• Save the changes you’ve made and reboot your PC and see if you can now run the virtual machine without any problem.

If you encounter a Blue Screen error that points out to the CMUDA.sys, read on as this post will guide you in fixing it. The CMUDA.sys file is a Windows operating system driver file that is related to the USB Device Audio capabilities of a computer. There are times when this file causes Blue Screen error due to some conflicts in RAM or some incompatible firmware or hard disk issues, corrupted drivers or malware infection, and so on. There are various Blue Screen errors that are related to the CMUDA.sys file such as:

• KMODE EXCEPTION NOT HANDLED
• PAGE FAULT IN A NONPAGED AREA
• IRQL NOT LESS OR EQUAL
• SYSTEM THREAD EXCEPTION NOT HANDLED (CMUSBDAC.sys)

In most cases, the CMUDA.sys file usually triggers the SYSTEM_THREAD_EXCEPTION_NOT_HANDLED Blue Screen error. Although this Blue Screen error may seem complicated, its workarounds are straightforward so you won’t have any problems in following them.

Option 1 – Try to update or rollback your device drivers

If the first option didn’t work for you, then it’s time to either update or roll back the device drivers. It is most likely that after you updated your Windows computer that your driver also needs a refresh. On the other hand, if you have just updated your device drivers then you need to roll back the drivers to their previous versions. Whichever applies to you, refer to the steps below.

• Open the Devices Manager from the Win X Menu.
• After opening the Device Manager, locate the device drivers that are marked with a small yellow exclamation mark icon and right-click on each one to open their Properties. On the other hand, you can also look for sub-entries under Sound, video, and game controllers like the C-Media USB Audio Class
• After that, switch to the Driver tab and click on the Uninstall Device button.
• Follow the screen option to completely uninstall it.
• Finally, restart your computer. It will just reinstall the device drivers automatically.

Note: You can install a dedicated driver on your computer in case you have it or you could also look for it directly from the website of the manufacturer. You can download the as C-Media USB Audio Class driver from the cmedia.com website.

Option 2 – Try to recreate the CMUDA.sys file

The first thing you can try is to recreate the CMUDA.sys file. Every time your Windows 10 PC boots up, it looks for all the system drivers in place and if it is unable to find them, it tries to create them. Which is why if you remove your corrupt driver file, chances are, you might get a fixed file recreated just for you. How? Refer to the steps below.

• Boot your Windows 10 PC in Safe Mode.
• Then open File Explorer and navigate to this location: C:/Windows/System32/drivers
• From there, look for the file named sys and rename it to CMUDA.old.

Note: As you can see, the file’s extension has changed from .sys to .old.

• Now restart your computer and check if the CMUDA.sys Blue Screen error is now fixed.

Option 3 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:

• Tap the Win + I keys to open the Settings panel.
• Then go to Update & Security > Troubleshoot.
• After that, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

On the other hand, you can also try running the online Windows 10 Blue Screen troubleshooter from Microsoft. It is a wizard that could help you fix any Stop errors related to the CMUDA.sys file and will offer you helpful links as you use it.

Option 4 – Try running the DISM tool

You can try running the Deployment Imaging and Servicing Management or DISM tool to fix the Wdf01000.sys Blue Screen error. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Option 5 – Run System Restore

Running System Restore might also help in fixing Blue Screen errors related to the CMUDA.sys file.

• 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.

The quickest and easiest way to log into your computer is when you use the PIN feature in Windows 10. Even though it is a bit slower compared to biometric logins such as Fingerprint and Iris scanning that comes under Windows Hello, the PIN feature is definitely less complicated. However, just like any other module of the software, it is also prone to some errors. In this post, you will be guided in fixing several PIN errors such as 0xd00000e5, 0x8007139f, and 0x8009003. These errors could be caused at different points in time like when you change or create a PIN or when you log into your computer. To fix the 0xd00000e5, 0x8007139f and 0x8009003 PIN errors, there are various solutions you can try. You may empty the contents of the NGC folder or remove and change the PIN or the password. You could also use the Group Policy Editor or reset the ACLs in the NGC folder as well as run built-in tools like System File Checker and the DISM tool.

Option 1 – Take ownership of the NGC folder and delete its contents

• Boot your computer first into Safe Mode.
• Next, you need to take ownership of the Ngc folder first and you can do that using Command Prompt.
• Type “command prompt” in the Windows Search bar and then right-click on the relevant search result and select “Run as administrator”.
• After that, if a User Account Control or UAC prompt appears, just click on Yes to proceed.
• Next, type and enter this command: TAKEOWN /F C:WindowsServiceProfilesLocalServiceAppDataLocalMicrosoftNgc
• Note that the <path> is the location of the folder or file in File Explorer.
• Now type and enter this second command: ICACLS C:WindowsServiceProfilesLocalServiceAppDataLocalMicrosoftNgc /grant administrators:F
• Finally, once the command has been executed, restart your computer.
• Once your computer has restarted, delete all the contents in the Ngc folder and check if the error is now fixed.

Option 2 – Try to remove and change the PIN or password

The 0xd00000e5, 0x8007139f, and 0x8009003 PIN errors could be caused by some conflicting issues with the PIN or password you have set for the User Account of your computer. Thus, you have to remove or change the PIN or password to fix these PIN errors.

• 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 to use the Group Policy Editor

• Tap the Win + R keys to open the Run utility and type “gpedit.msc” in the field and tap Enter to open the Group Policy Editor.
• Next, navigate to this policy setting: Computer Configuration > Administrative Templates > System > Logon
• After that, double click on the “Turn on convenience PIN Sign-in” option located on the right-side panel.
• Then set its radio button to Enabled. You will see the following description when you do so:

“This policy setting allows you to control whether a domain user can sign in using a convenience PIN. If you enable this policy setting, a domain user can set up and sign in with a convenience PIN. If you disable or don’t configure this policy setting, a domain user can’t set up and use a convenience PIN. Note: The user’s domain password will be cached in the system vault when using this feature. To configure Windows Hello for Business, use the Administrative Template policies under Windows Hello for Business.”

• After setting the radio button to Enabled, it will turn on the Logins in your computer using the PIN.
• Close the Group Policy Editor and restart your computer for the changes to take effect.

Option 4 – Try to reset the ACLs in the Ngc folder

• Type “command prompt” in the Windows Search bar and then right-click on the relevant search result and select “Run as administrator”.
• After opening Command Prompt with admin privileges, execute this command: C:/Windows/Service/Profiles/Local/Service/AppData/Local/MicrosoftNgc /T /Q /C /RESET
• The command you entered will start checking for errors and fix them automatically.

Option 5 – Run the System File Checker scan and the DISM tool

System File Checker:

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow

The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:

1. Windows Resource Protection did not find any integrity violations.
2. Windows Resource Protection found corrupt files and successfully repaired them.
3. Windows Resource Protection found corrupt files but was unable to fix some of them.

• Now restart your computer.

DISM tool:

• Open Command Prompt.
• 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
  • Dism /Online /Cleanup-image /Restorehealth
• After that, wait until the process is finished and do not close the window as the process will probably take a couple of minutes.
• Once it’s done, restart your computer.

What exactly is the 2GB filesize Error?

The PST file could be around 2 gigabytes if you are using MS Outlook 2002 or any earlier versions for your own personal Folders. The 2GB filesize malfunction occurs when your PST memory both reaches or exceeds this limit. The 2GB size problem code is, in addition, referred to as an outsize PST file error. When this error happens you may be unable to deliver or receive e-mails via your Outlook account. Moreover, you'll likewise not be able to add any new data or even view your important calendar items, notes, and saved drafts. MS-Outlook shows several types of problem codes which indicate the 2GB file size dilemma. Listed below are some of the messages that can be displayed on your monitor:-

• The file could not be added to the folder. The action could not be completed.
• Task 'Microsoft Exchange Server - Receiving' reported error (0x8004060C): 'Unknown Error 0x8004060C'
• Can't copy the item
• Errors have been detected in the file xxxx.pst. Quit all mail-enabled applications.
• Task 'Microsoft Exchange Server' reported error (0x00040820):'Errors in background synchronization. In most cases, further information is available in a synchronization log in the Deleted Items folder.'
• xxxx.pst cannot be accessed - 0x80040116

Solution

Error Causes

The simple explanation for this malfunction is that you have maxed out the two gigabytes account limit. This happens in case you continue downloading fresh data and saving files and the old emails in your Outlook account. Over time, the space becomes limited and along with it the 2 GB file limit error. This error also presents a critical danger of data loss which is a possibility in your Outlook account, which hinders you as well from fully utilizing your email account. For regular Outlook customers, who utilize this program for practically all email communication within as well as outside the office, this error is annoying and frustrating as it causes a great deal of annoyance as well as decreases their performance and productivity.

What exactly are the Symptoms?

Below are a few signs that will help you recognize the 2GB file-size error:

• Inability to fill and open the OST and PST files
• Error messages pop-ups
• Failure to send emails
• Failure to make or edit new contacts
• Inability to synchronize the file

Further Information and Manual Repair

It is desirable to fix this error code right away especially if this is the preferred strategy to carry out communication in your office. Fix it immediately or else you might not receive e-mails that are important from your colleagues. There are 3 ways to solve this issue.

Method 1

One is to remove the old e-mails and connections and replace them with new ones. This may not be the best option for you in case you don't wish to lose emails and your old contacts.

Method 2

The second alternative would be to install a fresh version of MS-Outlook like 2010. The file-size limits of OST and PST files in these editions are larger than in ms-outlook 2002. On the other hand, this is a good idea for the long run but may not be the best idea for today as you will not have the ability to recover your previous e-mails and contacts that are outdated.

Method 3

The third and maybe the method that is best to resolve the 2GB file size limit error while ensuring the restoration of your old e-mails and contacts as well as increasing the limit to 4GB, is Restoro program's installation. Here may be the best recovery program on the market. It is really easy to use, safe, exceptionally functional, secure, and especially can resolve this issue. Technical expertise isn't needed by you to perform your way around this device.

All you should do is:

Click here to download and install the Restoro repair tool on your computer. In your MS Outlook account, you can restore all your data in just a couple of clicks. Talking of data recovery, this software can also help you recover all those other e-mails before the PST malfunction happened, or that you may have deleted. So, if you have deleted any significant email that you want to recover, this will undoubtedly be of use for you. By installing it on your system you can double your Outlook account's quality to twice as much as the standard size.

Oh, gamers rejoice, the Steam autumn sale is just around the corner!!!

The sale starts on November 22nd and lasts until November 29th. A great deal for any gamer, especially for ones that have plenty on their wishlist. Speaking of wishlists now would be a good time to place some interesting titles on them so you can be notified about discounts on them.

If you by any chance are unavailable to participate in the Autumn sale, do not worry, Steam winter sale is coming on December 22nd and it will last until January the 5th so you can save for it.

The best tactic for sale is not to jump on the train right away, it is best to wait until a few days, maybe even until the last 2 days since some games can go even lower on discount in the last days of the sale. Also, there might be also some packages that include games you wish to buy but are packed with other ones in a bundle and even with a higher discount.

So get prepared for the upcoming sale and treat yourself to something nice!

A couple of Windows 10 users have reported an error on domain-connected systems when they tried accessing their computer systems remotely. This occurs when the network level authentication or NLA is enabled on the computer. If you are one of these users, you better keep reading as this post will guide you on how you can fix this error. To resolve this issue, there are several workarounds you can try. You can either disable this option directly via properties or you can also modify some registry entries or sub-keys and restart the system. When you encounter this problem, an error message pops up that states:

“The remote computer that you are trying to connect to requires network level authentication (NLA), but your windows domain controller cannot be contacted to perform NLA. If you are an administrator on the remote computer, you can disable NLA by using the options on the Remote tab of the System Properties dialog box.”

Or you could also see this error message instead:

“The remote computer requires Network Level Authentication, which your computer does not support. For assistance, contact your system administrator or technical support.”

Before you proceed in troubleshooting the problem using the options provided below, you need to create a backup for your data or system restore point as well as make a copy of any registry entries you are going to modify.

Option 1 – Disable Network Level Authentication via Properties

The NLA is a useful tool that provides your computer with extra security and helps network administrators in controlling who can log into the system with just a click of a single box. However, there are times when it can become a disadvantage and could prevent you from accessing your system remotely. Thus, you need to disable it using Properties.

• Tap the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” and tap Enter to open System Properties.
• Next, go to the remote tab and uncheck the checkbox for the “Allow connections only from computers running Remote Desktop with Network Level Authentication (recommended)” option.
• Now click the Apply button to save the changes made and exit System Properties and then try logging into the remote computer again and see if the problem is fixed or not.

Option 2 – Disable NLA via Registry Editor

Note that you can only use this option if the first one didn’t work for you. Take note that this option will require you to restart your PC completely which could mean some downtime if your computer is running a production server. So make sure to save all your work.

• Tap the Win + R keys to open the Run dialog box and then type in “Regedit” in the field and tap Enter to open the Registry Editor.
• From there, click on File > Connect Network Registry and input the details of the remote computer and then try to connect.
• Navigate to the path below after you’re connected:

HKLM >SYSTEM > CurrentControlSet > Control >Terminal Server > WinStations > RDP-Tcp

• After that, change the values given below to “0”
  • SecurityLayer
  • UserAuthentication
• The navigate to PowerShell and execute this command – restart-computer

Option 3 – Disable NLA via PowerShell

PowerShell allows you to tap into the remote computer and once you’ve targeted the machine, you can execute the commands given below to disable NLA.

• Tap the Win + S to open Search and then type in “PowerShell” in the field. Right-click on the related result and select the “Run as administrator” option.
• After opening PowerShell, execute the command below:

2. Once in the PowerShell, execute the following command:

$TargetMachine = “Target-Machine-Name” (Get-WmiObject -class “Win32_TSGeneralSetting” -Namespace rootcimv2terminalservices -ComputerName $TargetMachine -Filter “TerminalName=’RDP-tcp'”).SetUserAuthenticationRequired(0) Note: In the command given, the “Target-Machine-Name” is the name of the machine you are targeting.

Option 4 – Use the Group Policy Editor to disable NLA

Another option you can use to disable NLA is via the Group Policy Editor. This is ideal for you if you are blanket disabling. Just take note that the Group Policy Editor is a powerful tool and that if you make some mistakes by changing values you have no clue about, you can render your computer useless so make sure that you create a backup for all the values before you proceed.

• Tap the Win + R keys to open the Run dialog box.
• Then type in “gpedit.msc” and tap Enter to open the Group Policy Editor.
• From there, go to this path – Computer Configuration > Administrative Templates > Windows Components > Remote Desktop Services > Remote Desktop Session Host > Security
• After that, search for “Require user authentication for remote connections by using Network Level Authentication” and set it to disabled.
• Now check if the error is fixed or not.

If you are running Windows Update on your Windows 10 computer and you suddenly encounter error code 0x8000FFFF, E_UNEXPECTED – Unexpected failure then read on as this post will give you a couple of suggestions to resolve this problem. Note that you can encounter this error not only on Windows Update but also on Microsoft Store apps at times. Follow the options given below to fix error code 0x8000FFFF, E_UNEXPECTED – Unexpected failure error on your Windows 10 PC.

Option 1 – Try to reset the Microsoft Store cache

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

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

Option 2 – Check the Cryptographic Service

• Tap the Win + R keys to open the Run dialog box.
• Next, type “services.msc” in the field and hit Enter or click OK to open Services.
• From the list of Services, look for the Cryptographic Service. Then right-click on it and select Properties from the context menu.
• After that, check if the service is started by checking the Service status. If it is started, click on the Stop button to stop the service and if it is already stopped, leave it as it is, at least for now.
• Next, make sure that the Startup type menu in the Service’s properties is set to Automatic before you go on.
• Now confirm any dialog boxes that may appear as you set the Startup type and then click on the Start button located in the middle before you exit Properties.

Option 3 – Delete the contents in the Software Distribution folder and Catroot2 folder

• Open the WinX Menu.
• From there, open Command Prompt as admin.
• Then type in the following command – don’t forget to hit Enter right after typing each one of them.

net stop wuauserv net start cryptSvc net start bits net start msiserver

• After entering these commands, it will stop the Windows Update Service, Background Intelligent Transfer Service (BITS), Cryptographic, and the MSI Installer
• Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.

After resetting the SoftwareDistribution folder, you need to reset the Catroot2 folder to restart the services you just stopped. To do that, follow these steps:

• Type each one of the following commands.

net start wuauserv net start cryptSvc net start bits net start msiserver

• After that, exit Command Prompt and restart your computer, and then try to run Windows Update once more.

Option 4 – Check the Root Permissions

You might also want to check the permissions on the root of C: and make sure that “BUILTINUsers have read access because if it doesn’t, then no wonder why you’re getting the error code 0x8000FFFF.

Option 5 – Try to use the Media Creation tool

The Media Creation tool in Windows allows you to use the ISO installation file to make a bootable device that you can use to install Windows on your PC. Note that this is kind of different from the usual installation process as it could erase your computer’s current settings and data on the primary drive. Thus, before you proceed, you need to backup all your data into some removable drive and then use the Media Creation Tool to make a bootable drive.

• After making the bootable drive, you need to plug it into your computer and then reboot.
• Next, tap the F10 or Esc key to open the boot options.
• Now set the boot priority of the removable drive the highest. Once the setup comes forth, follow the next onscreen instructions and install Windows without any problems.

Option 6 – Try installing the updates in a Clean Boot State

It could be that some third-party application is the one that’s causing the problem so it’s best if you put your computer in a Clean Boot state. During this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.

• 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” checkbox 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” checkbox.
• 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 that, try to install the Windows app again.

Note: If you are able to install the app without any trouble at all then it means that the error is caused by some third-party application in your computer. You need to look for the culprit and uninstall it once you found it.

Option 7 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter is one of the things you can first check out as it is known to automatically resolve any Windows Update errors like error code 0x8000FFFF. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

If you recently upgraded your computer or if you’ve just switched to a new Windows 10 PC, the most common errors you might encounter are the Windows Activation errors. This issue boils down to the Windows Activation server which has either failed to validate or recognize the license tied to the digital account. In this post, you will be guided on how to fix an activation error in an organization with an error code 0x8007007B. It contains this exact error message: “We can’t activate Windows on this device as we can’t connect to your organization’s activation server. Make sure that you’re connected to your organization’s network and try again. If you continue having problems with activation, contact your organization’s support person. Error code 0x8007007B.” Various computers are activated via the KMS licensing (Key Management Server) in organizations. Computers that are activated using this process do not get a permanent activation and have to stay connected to the organization instead of for at least 7 months or 180 days. It is common in Pro and Enterprise versions that are deployed in bulk for at least hundreds or thousands of computers. So imagine a user with a personal computer in the office who decided to leave the organization but will still have an activated Windows key. And so to prevent that from happening, organizations use the KMS licensing. Another possible cause of the error is in case some user used an organization key and later on, the PC just got upgraded or downgraded to a version that is not compatible with that copy of Windows. To fix this Windows Activation error, here are some suggestions that might help.

Option 1 – You can try connecting to the organization’s network and activate the computer. But before that, you need to first check if the computer actually belongs to an organization or not.

• Tap the Win + R keys to open the Run dialog box.
• Type “cmd” and hit Enter to open an elevated Command Prompt.
• After that type the vbs /dlv command and hit Enter to execute it.
• Next, check if the Product Key Channel says “GVLK”. If it does, then it means that your computer was activated using volume licensing.

Option 2 – Change Licence Key

If you’ve recently left an organization then it’s best if you buy another copy of Windows 10 and then change the license key. This time, make sure that the license key is for the same version of Windows. However, if it’s different, you need to format your computer.

Option 3 – You can try activating Windows 10 using a 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.

Option 4 – If you think that the issue is caused by some hardware changes, you can try using the Activation Troubleshooter.

There are times when users already have the license keys and were able to activate Windows. However, it doesn’t last long and only works for a while and it’s suddenly throwing up an activation error like this one. To use the Windows Activation Troubleshooter, just go to Settings and to Activation and then run the troubleshooter from there. If you've made some modifications to your hardware, you have to click the “I changed hardware on this device recently” option for further suggestions.

Libvlc.dll Error Code - What is it?

Libvlc.dll error is a type of DLL file error. Libvlc.dll is a type of Dynamic Link Library file associated with 3rd party software developed by the Videolan Team for the Windows OS. Libvlc.dll file contains small programs similar to EXE executable files which allow multiple software programs to share the same functionality. It helps load and run certain programs developed by Videolan Team on your system. The Libvlc.dll error pops up when the file fails to load and run your desired program. This error is usually triggered during program installation while a Libvlc.dll related software is running on the PC or during Windows start-up or shut down. Libvlc.dll error code may appear on your Windows computer in any of the following formats:

"Libvlc.dll not found." "The file libvlc.dll is missing." "Cannot register libvlc.dll." "Cannot find C:WindowsSystem32\libvlc.dll." "Libvlc.dll Access Violation." "Cannot start Third-Party Software. A required component is missing: libvlc.dll. Please install Third-Party Software again." "This application failed to start because libvlc.dll was not found. Re-installing the application may fix this problem."

Though Libvlc.dll error is not a fatal error code but nonetheless it is advisable to resolve it immediately to avoid any inconvenience.

Solution

Error Causes

Libvlc.dll error code may occur due to several reasons including but not limited to:

• Corrupt Libvlc.dll registry entry
• Malware infection
• Hardware failure
• Deleted or missing Libvlc.dll file
• Another program overwrote the required version of Libvlc.dll

Further Information and Manual Repair

Here are some of the best and easy-to-work-around methods that you can try to resolve Libvlc DLL error on your system in minutes. Let’s get started:

Method 1: Re-install the Deleted Libvlc.dll file

Since DLL are shared files, sometimes the error code may pop up if it is deleted accidentally while uninstalling a program that is also run by the same file. In such a situation, to resolve the Libvlc.dll error all you have to do is re-install the deleted file by going into the recycle bin. If you find it reinstall, but if you don’t then simply download Libvlc.dll file from a reliable DLL file website and install. Hopefully this will resolve the issue. Alternatively, you can re-install VLC which should come with a complete copy of the libvlc.dll. However, if the error code still persists, then try other methods given below.

Method 2: Restore Points - Undo the Recent Changes

Another way to resolve Libvlc dll error is to restore your Windows system to an earlier point. System Restore can return your PC system files and programs back to a time when everything was working absolutely fine. This can help you avoid hours of troubleshooting headaches. This can be easily done by going to the start menu. In the search box type System Restore and press enter. Now click System Restore and enter administrator password if prompted. Follow the steps in the Wizard to choose a restore point and then reboot to activate changes.

Method 3: Repair the Registry

The Libvlc dll error can be triggered by invalid registry entries. To resolve, simply download Restoro. This is a user-friendly and multi-functional PC Fixer embedded with a powerful registry cleaner. It removes all the invalid files, repairs the damaged DLL files, and cleans the registry in seconds. Click here to download Restoro and resolve Libvlc dll error today!

Mail and Calendar not working with Cortana? As you know, Cortana was first launched way back in 2014 with an emphasis on its tight integration with both the Windows Mail and Calendar apps. This integration has been one of the highlighting features of this Personal Digital Assistant. However, there are some users who reported that the Calendar and Mail integration with Cortana is not working on their Windows 10 computers. This kind of problem could be due to several factors like the loose integration between the services, incompatible versions of the components, and many more. According to the users who experienced the issue, the features affected are the syncing of calendar appointments, sending emails via Cortana, and so on. To fix this problem, there are several options you can try. You can try to restart Cortana’s processor run the Windows Store Apps troubleshooter. You could also try to relink your Microsoft account or reinstall the Mail and Calendar apps, as well as reinstall Cortana.  For more details, follow the suggestions given below.

Option 1 – Restart Cortana’s process in the Task Manager

Restarting Cortana’s process in the Task Manager could also help you resolve the problem. Refer to the steps given below to do so.

• Tap the Ctrl + Alt + Del keys to open the Security options window.
• From there, look for the Task Manager in the given list and open it.
• Next, look for the process of Cortana and right-click on it, and then select the End Task option to end its process.
• After that, the Cortana process will restart by itself and re-initialize.

Option 2 – Run the Windows Store App troubleshooter

The Windows 10 Store Apps Troubleshooter will help you in fixing the Web Preview problem in Cortana. This is a great built-in tool from Microsoft that helps users fix any app issues. To use the Windows Store Apps Troubleshooter, follow the steps below.

• Tap Win + I keys again to open the Windows Settings panel.
• Go to Update & Security and then go to Troubleshoot.
• Under the Troubleshoot section, on your left-hand side, scroll down to find Window Store Apps.
• Then click on the Run the troubleshooter option and follow the on-screen instructions and then see if it fixes the problem.

Option 3 – Try to relink your Microsoft Account

You might also want to relink your account in Microsoft using the Windows 10 Settings app.

• Open the Windows 10 Settings app.
• Next, navigate to Accounts > Email & Accounts and from there, go to the section of Accounts used by Email, Calendar, and Contacts.
• After that, select your email account and select Manage.
• Once done, a new panel will come up where you have to click on the “Delete account from this device” link.
• Once you get a confirmation, select Delete and then relink the same account. This should resolve the problem.

Option 4 – Try to reinstall or update the Mail and Calendar apps

• Open Windows PowerShell as admin.
• Next, execute this command: Get-AppxPackage *windowscommunicationsapps* | Remove-AppxPackage
• Once done, restart your computer and go to the Microsoft Store page to get the latest updates for both Windows Mail and Calendar apps.

Option 5 – Try to reset Cortana via Settings

• Launch the Windows 10 Settings app and go to Apps > Apps & Features.
• Next, look for the entry of Cortana on the right-side panel and select it.
• After that, select the Advanced options and then select the Terminate button under the Terminate section.
• Once done, click on the Reset button under the Reset section.
• Restart your PC.
• After your computer boots, launch Cortana again and check.

Option 6 – Try to reinstall Cortana

If none of the options given above works, you must consider reinstalling Cortana.

• First, right-click on the Taskbar and select the Task Manager.
• Next, select File menu > Run new task and type “Powershell” in the field and then select the “Create this task with administrative privileges” option.
• Click on OK to open the PowerShell console.
• After that, type the following command and hit Enter to execute it:

Get-AppXPackage -Name Microsoft.Windows.Cortana | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"}

• Restart your computer and check if the problem is now fixed.