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How to Fix ntdll.dll crash Error on Windows

DLL files, also known as Dynamic Link Libraries are external parts of applications that run on Windows as well as other operating systems. Almost all applications are not complete in themselves and store code in different files. In this post, we will be discussing one DLL file called ntdll.dll. It is described as “NT Layer DLL” which means that it contains some Kernel functions that help in the normal functioning of the Windows operating system. It is created by Windows in the System32 folder when the OS gets installed. This file can serve different programs simultaneously by providing them with different Kernel functions which support the programs’ performance. However, if you encounter the ntdll.dll file error on your Windows 10 computer, read on as this post will guide you in fixing the problem.

Option 1 – Try to re-register the ntdll.dll file

You may have to re-register the ntdll.dll file using the regsvr32.exe before you can successfully install the program and fix ntdll.dll file crash error. The Regsvr32 tool is a command-line utility that can be used to register and un-register the OLE controls like DLL and ActiveX (OCX) control in the Windows operating system. Follow the steps below to use it.

  • Open Command Prompt as admin from the WinX menu.
  • Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
    • exe /u ntdll.dll
    • exe ntdll.dll
  • You should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

Option 2 – Disable problematic Internet Explorer add-ons

There are instances when some add-ons in the Internet Explorer browser can cause the ntdll.dll file crash error. Thus, you need to disable some add-ons in Internet Explorer and then check if it fixes the problem.

Option 3 – Try running the DISM tool

You might want to repair potentially corrupted files in your system as having them could also trigger the ntdll.dll file crash error. To repair these corrupted system files, you can run the DISM commands:

  • Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
  • After that, input each one of the commands listed below sequentially to execute them:
    • Dism /Online /Cleanup-Image /CheckHealth
    • Dism /Online /Cleanup-Image /ScanHealth
    • Dism /Online /Cleanup-Image /RestoreHealth
  • Once you’ve executed the commands given above, restart your computer and check if the DCOM error is now fixed.

Option 4 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job.

Option 5 – Try to replace the DLL file with a trusted source

  • First, you need to get the new DLL file from another computer with preferably the same file version number.
  • After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
    • x86: This PC > C:WindowsSystem32
    • x64: This PC > C:WindowsSysWOW64
  • Next, type “cmd” in the Cortana search box and right-click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
  • Now type the “regsvr32 ntdll.dll” command and hit Enter.
  • Restart your PC and check if the error is now fixed.

Option 6 – Try scanning your computer using Windows Defender

The ntdll.dll file crash error might also be infected with malware or virus and to eliminate it, you have to scan your computer using security programs like 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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Sandbox failed to start with error 0xc030106
If you suddenly encountered an error when you try to run the Windows Sandbox that says, “Windows Sandbox failed to start, Error 0xc030106, The virtual machine or container exited unexpectedly”, read on as this post will guide you on what you can do to resolve the problem. According to security experts, this kind of error in Windows Sandbox is due to some issues with the supporting virtualization component. It could also be caused by other factors and to fix it, there are several potential fixes you need to check out. You can try running the Windows Sandbox as an administrator. You should also make sure that all the supporting processes are running properly, as well as try to install any pending Windows Updates.

Option 1– Try to run Windows Sandbox as an admin

  • In the Start Menu, scroll down until you see the entry for the Windows Sandbox.
  • Then right-click on it and select More and then select the “Run as administrator” option to open it with admin privileges.
  • Next, if a User Account Control or UAC prompt pops up, just click on Yes to proceed.
  • You should now be able to open the Windows Sandbox without the error. However, if the error persists, proceed to the next given options below.

Option 2 – Ensure that all the supporting processes and services are running properly

If running Windows Sandbox as an administrator didn’t fix the error, you have to ensure that all related processes for Windows Sandbox are running properly. To do that, follow these steps:
  • Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and hit Enter to open the Windows Services Manager.
  • Next, from the list of services, look for the following services in the given order:
    • Network Virtualization Service
    • Virtual Disk
    • Hyper – V Virtual Machine
    • Hyper – V Host Compute Service
    • Container Manager Services
  • After you find the aforementioned services, restart each one of them.
  • Once done, try to open the Windows Sandbox again and see if the error is fixed or not.

Option 3 – Try to install any pending Windows Updates

If the second option still didn’t work, then you might want to check Windows Updates on your computer and see if there are any pending Windows Updates you have to install. All you have to do is go to the Windows 10 Settings app and then go to the Windows Updates section and click on the “Check for updates” button to check if there are any pending updates that are needed to be installed. This could fix the Windows Sandbox error.
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Microsoft Store not opening
When Windows 10 was introduced as an upgrade to Windows 7 and 8, a lot were thrilled because of its new features. One of the most interesting features that this has is the Microsoft Store. Just like in our tablets and smartphones, we can now download our favorite apps from a trusted source. Without the Microsoft store app, you can’t download any applications that you can use on your computer. But what happens if you can’t open your Microsoft Store or you accidentally uninstalled it? The most common error that users encounter when accessing Microsoft Store is the error code 0x80072efd. This error code appears when there is a problem with the internet connection. To resolve this, troubleshoot your modem by doing a simple power cycle. Turn off your modem and wait for a couple of minutes and turn it back on. It should refresh your internet. This works if there is really no problem on the Service provider’s side. Disable your Proxy server, if you are using one to access the internet. To do this, press Windows + R keys on your keyboard. Type “inetcpl.cpl” in the box and go to Connection. Next, click on LAN settings then tick on the box next to Automatically detect settings. Uncheck the box below Proxy Server Among the useful apps that came with the Windows 10 upgrade is PowerShell. It allows you to install and uninstall individual and all apps by using a series of commands. So you don’t have to worry if you can’t find your Microsoft Store or if you accidentally delete it. To access PowerShell, type in the word PowerShell into the search box found beside your Window Icon. Look for PowerShell from the results and right-click on it and hit Run as Administrator.

When you are in the PowerShell window, enter the command below:

Get-AppxPackage -allusers Microsoft.WindowsStore | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml"
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Preventing installation of Removable Devices
In case you don’t know, Windows 10 supports installation and use of a number of removable devices which includes plug and plays mouse, keyboard, and other USB-based devices. But this could actually pose a threat to the integrity of a computer system and thus, some organizations pose a restriction in using these kinds of devices. the restriction on these devices is also useful especially if you keep on leaving your computer idle and someone tries to mess it up by plugging in a removable device. In such situations, the restriction will defend the user against data theft. Thus, in this post, you will be guided on how you can prevent the installation of removable devices on your Windows 10 computer. There are two options that can help you in preventing the installation of any removable devices on your computer – you can either try to use the Registry Editor or use the Group Policy Editor instead. Follow whichever option you want to use the instructions given below but before you start, don’t forget to create a System Restore Point first.

Option 1 – Prevent installation of Removable Devices via Registry Editor

  • 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.
  • Next, navigate to this registry path: HKEY_LOCAL_MACHINESOFTWAREPoliciesMicrosoftWindowsDeviceInstallRestrictions
  • From there, look for a DWORD named “DenyRemovableDevices” and set its value to “0”. On the other hand, if you can’t find this DWORD, just simply create it and set its value to 0.
  • Once done, exit the Registry Editor and reboot your PC to apply the changes made.

Option 2 – Prevent installation of Removable Devices via Group Policy Editor

Keep in mind that the Group Policy Editor is not available in the Home Edition of the Windows operating systems. Thus, if you are using one, just stick to the first option, otherwise, proceed to the following steps.
  • Tap the Win + R keys to open the Run utility and type “gpedit.msc” and click OK or tap Enter to open the Group Policy Editor.
  • After that, go to this policy setting: Computer ConfigurationAdministrative TemplatesSystemDevice InstallationDevice Installation Restrictions
  • Next, look for the “Prevent installation of removable devices” entry and once you find it, set it as “Enabled”. From this window, you should see the following description of this policy setting:
“This policy setting allows you to prevent Windows from installing removable devices. A device is considered removable when the driver for the device to which it is connected indicates that the device is removable. For example, a Universal Serial Bus (USB) device is reported to be removable by the drivers for the USB hub to which the device is connected. This policy setting takes precedence over any other policy setting that allows Windows to install a device. If you enable this policy setting, Windows is prevented from installing removable devices and existing removable devices cannot have their drivers updated. If you enable this policy setting on a remote desktop server, the policy setting affects redirection of removable devices from a remote desktop client to the remote desktop server. If you disable or do not configure this policy setting, Windows can install and update device drivers for removable devices as allowed or prevented by other policy settings.”
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  • Now restart your computer to save the changes made. This should prevent the installation of any removable devices in your Windows 10 computer.
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Is it wise to keep old electronics

Hello all the wonderful people and welcome to our new article where we take a little different turn than usual and discuss why keeping old electronics around the house is not such a good idea. We all have some drawer or in some bag around the house and in the end of the day if that electronic has battery inside it is probably not the smart thing to keep it.

So naturally, the question comes why it is a bad idea to have old electronics with batteries in them? Well unlike a battery failure with, say, some AA batteries jammed in the back of an old toy, the risk with a lithium-ion battery failing isn’t just some leaking and corrosion in the battery compartment, it’s a potential fire as the battery swells up and the gases (combined with the stored energy) turn the battery into a potential fire hazard.

Good thing is that the battery will not explode just like that, it will swallow over time and get bigger and bigger until the breaking point is reached and all the fire breaks lose. So if by any chance you have some old gadgets lying around you can check up on them and see if has swelling process started, if yes, dispose properly of that piece of the old device immediately.

How to keep old electronics

If you’re not ready to get rid of the gadget then it’s best to charge it properly for storage. Proper charging keeps the battery cells and circuits in optimum health.

While recommendations vary by manufacturer and application, the general consensus is that lithium-ion batteries should be charged to approximately 40%. (Some manufacturers recommend charging 50% or 60% instead.)

Really, the important part here isn’t the exact percentage. What’s important is ensuring that the battery is charged to roughly half capacity and not stored with a completely discharged or completely full battery.

Discharge rates on lithium-ion batteries in completely powered-off devices are very slow, but you should still plan to top off the charge every 12-18 months or so to keep it around 50%.

If you wanted to go above and beyond, a metal storage container with a snug lid on a basement shelf with a desiccant pack inside to control the moisture would offer optimum conditions.

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A 3 Step DIY Guide to Repairing Error 501

Error 501 - What is it?

Error 501 is an error code that sometimes may occur while you are using Internet Explorer on your Windows PC. The error message is displayed as:

'Error 501: Not implemented or not supported.'

Solution

Restoro box imageError Causes

It is difficult to narrow down the ultimate cause of error 501. This is because this error code can be triggered by multiple reasons such as:
  • Third-party confliction or due to an incorrect HTTP 1.1 setting
  • Improper program installation
  • Changes in the “LocalAccountTokenFilterPolicy” registry key
  • Corrupted Registry Database

Further Information and Manual Repair

The occurrence of this error regardless of what the cause is may cause a lot of inconvenience to you. And if not fixed on the time it can lead to system failure too. To repair the error 501, identifying the cause for the error really helps. By identifying the cause, you can easily select the most suitable solution to fix it.

Let us walk you through the solutions to fix error 501 timely:

Cause: Third-party conflicts or due to an incorrect HTTP 1.1 setting

Solution: If the above cause is the reason for error 501, this means the Local Policy Rights Settings have been altered. And because of that, Windows is not running your desired program. To solve this error simply log on to Windows as an administrator. Then run local computer policy snap-in. Open it and click on the computer configuration. Here you will see the Windows settings option. Click on it and then open security settings, local policies, and click on properties. Now in the add users section select the user which you want to add to the policy and save by pressing OK. After you’ve made changes, now try using internet explorer again. If this is the cause for the error pop, the error will not occur. If it still occurs then this means there is some other underlying cause for the error. Read on to find out.

Cause: Improper Program Installation

Solution: Error 501 may also occur due to improper program installation. The best way to resolve it is to uninstall recently installed programs.

Cause: Changes in the “LocalAccountTokenFilterPolicy” registry key

Solution: Sometimes during installation registry keys also get damaged or changed. If changes in the LocalAccountTokenFilterPolicy” registry key is the issue, then you need to alter the registry key ‘LocalAccountTokenFilterPolicy settings and its value. This key inside the registry database allows Windows to control the various access options that you have. However, due to wrong settings, it denies access and shows error 501 when you open Internet Explorer. To alter registry key settings can be tricky and complex if you are not a computer programmer. In such as scenario it is advisable to download Restoro. This is a user-friendly and multi-functional repair tool embedded with a powerful register cleaner. In addition to this, it also functions as anti-virus and a system optimizer.

Restoro Solution

Restoro is simple and easy to use. To operate this tool on your PC and to reset registry settings you don’t need any technical expertise or sound knowledge. Its smooth navigation makes it easy for users to scan and repair errors like 501 due to registry misconfiguration in seconds.  With this helper, you don’t have to modify Windows registry settings manually. It will do it automatically. Furthermore, if Error 501 is triggered by a corrupted registry database, you can run it to repair this issue too. It cleans and wipes out all the unnecessary and obsolete files that could be corrupting your registry. This includes junk files, internet history, and invalid registry entries. It clears up your hard disk space and repairs your corrupted registry. If your PC’s registry is damaged due to malicious software like viruses and malware, then it uses advanced antivirus to remove them from your system. It has a value-adding backup feature that enables you to create a backup of your files for data safety and recovery in case of loss during repair. Restoro is compatible with all Windows versions.

Starting with Restoro

Here are 3 simple steps to get started:
  1. Click here to download Restoro.
  2. Once the installation is complete, run it to scan for errors
  3. After scanning the errors, simply click repair to resolve the issues including the error code 501.
Along with fixing error code 501 triggered by registry damage, it also repairs all other PC-related issues. It helps maintain a stable and error-free system for the longest time.
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There is no internet when WIFI is connected
If your WIFI signal is strong but you can not connect to the internet then keep reading in order to find out why this happens and what can you do to fix it. One very important thing to know and understand is that WIFI and the internet are two different things and that they altho connected and working together are basically 2 things. WIFI is a name for a group of technologies that are using radio vawes to connect to the router in order to access the internet. The Internet itself is series of computers all connected in LAN. Think of WIFI like some invisible cable that connects your computer to the router. When we put things into perspective this way it becomes clear that we can indeed have a strong WIFI signal and that we are connected to the router but the router itself is not connected to the internet. So basically troubleshooting an internet connection is troubleshooting the router itself. The most common approach is to reset the router, turn it off, then back on, check cables, etc. But be sure that if your WIFI signal is strong and you can not access the internet it is a router issue.
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How to Fix Unknown Hard Error in Windows 10
The “Unknown Hard” error that keeps on appearing in Windows 10 can put users in an unpleasant situation. This kind of error leads to the freezing of the taskbar, blackening of the screen, and sudden disappearance of the icons on the Desktop. And each time you try to open Windows, the system will only give you an error message saying that it’s a critical error and some applications like Start and Cortana won’t work. Upon analysis, it seems that the “sihost.exe” is not responding and that it is the one that’s causing the c000021a Unknown Hard error to pop up. Sihost.exe files represent the Shell Infrastructure Host which is an essential component in the Windows operating system. The Windows Shell Infrastructure Host is primarily responsible for handling some graphical elements of the operating system interface such as the Start menu and the taskbar transparency. And so if the Shell Infrastructure or Sihost.exe has stopped, has been removed, or corrupted, you will most likely have issues with the overall functionality of the Windows operating system and you’ll get the Unknown Hard error In addition, the ctfmom.exe Unknown Hard error may also occur due to incompatible drivers installed on your PC. Ctfmom is a process that identifies inputs such as handwriting, languages, and many more. It’s the one that controls the functions of background behavior. To resolve this issue, you need to first try to identify which application is the one that’s running the sihost.exe file. And if needed, you need to either update or reinstall or completely uninstall the problematic application.

Option 1 – Try to run the System File Checker

The SFC Scan or System File Checker, us a built-in utility in Microsoft Windows that can be found in the C:\Windows\System32 folder. This tool allows users to scan and restore any corrupted system files in Windows that might be causing the Unknown Hard error to appear. Before you use this tool, make sure to find out whether the sihost.exe on your computer is a Trojan that you have to remove or if it’s a file that belongs to a trusted Windows application. Once you have that sorted out, follow the steps below.
  • 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.

Option 2 – Try to use System Restore

You can also try using System Restore. This is one of the ways you can use it to back up your PC. Since restore points are created automatically each week by System Restore, you can use System Restore to restore your computer back to an earlier good point in time.

Option 3 – Try to troubleshoot the error in a Clean Boot State

Putting your PC in a Clean Boot state can help you diagnose and troubleshoot the issues in your system. 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 Unknown Hard Error.
  • 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 putting your PC in a Clean Boot State, try creating a system restore point and see if the problem still occurs. Clean Boot troubleshooting is designed to help you isolate the problem. For you to execute a clean boot troubleshooting, you must do a couple of actions (the steps are given above) and then restart your PC after every action. You might have to disable one third-party app after the other to really isolate the issue. And once you’ve narrowed down the problem, you can either disable the third-party app that’s causing the problem or remove it. Note that you must switch your PC back into the Normal Startup mode after you’re done troubleshooting the problem. Here’s how you can do it:
  • From the “Start” menu, go to System Configuration.
  • After that, switch to the General tab and click the option for “Normal Startup”.
  • Next, go to the Services tab and clear the checkbox for “Hide all Microsoft services”.
  • Then find and click “Enable all” and if prompted, you have to confirm.
  • Afterward, go to the Task Manager and enable all the Startup programs and confirm the action.
  • Restart your PC when prompted.
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Fix Windows Update Error 0x8007001E
This post will provide you a couple of fixes you can try to resolve the Windows Update Error 0x8007001E in Windows 10. So if you are one of the users who encountered this particular Windows Update error then you’ve come to the right place. The error code in this error message also happens to be linked to some random BSOD crashes. The error code 0x8007001E is related to a storage space error or out-of-memory-type error. On the other hand, there are also instances when this error has nothing to do with your computer’s space or shortage of memory – it could be that there are broken software components or corrupted system files that are causing this error. Whichever your case is, refer to the options given below to fix the Windows Update Error 0x8007001E.

Option 1 – 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 0x8007001E. 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.

Option 2 – Free up some space on your drive

As mentioned, storage space error or out-of-memory-type error might have something to do with this problem so you need to free up some space on your drive. Make sure that you have enough space on your drive (15GB or so should do) and then restart your computer. After your computer reboots, ensure that all the major RAM hoggers are closed before you try to install the update or upgrade again.

Option 3 – Run the SFC scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Windows Update Error 0x8007001E to appear. 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.

Option 4 – Run the DISM tool

Running the DISM Tool helps in repairing the Windows System Image as well as the Windows Component Store in Windows 10 which might be the reason behind the Windows Update error 0x8007001E. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.
  • Open the Command Prompt as admin.
  • Then type in this command: 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.
  • Once it’s done, restart your computer and then check if the issue is resolved or not on the next startup.

Option 5 – Perform a System Restore

You can also try to perform a System Restore as it can also help you fix the Windows Update error 0x8007001E. 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 6 – Try running Microsoft’s online troubleshooter

You also have the option to run Microsoft’s online troubleshooter which could help you fix Windows Update errors including the Windows Update error 0x8007001E.
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Windows Upgrade/Activation error 0xc03f6506
There are a lot of home users that often get a computer that comes installed with the Windows 10 Home. And since Windows 10 Pro offers more features and utilities compared to Windows 10 Home, a lot of users also prefer to upgrade their Windows 10 Home computers to Windows 10 Pro. However, while doing so, a number of users reported that they encountered error 0xc03f6506 and they were not able to proceed with the upgrade. If you are one of these users, when you encounter error 0xc03f6506, you will see the following error message on your screen:
“The last product key you entered can’t be used on this copy of Windows (0xc03f6506).”
This particular error tends to occur when you go on to activate Windows 10 although it can also appear during the upgrade process. In such cases, you will see the following error message:
“Unable to upgrade your edition, We can’t upgrade your edition of Windows. Try upgrading your edition of Windows again. (0xc03f6506).”
To fix the Activation Error Code 0xc03f6506 in Windows 10, use the options provided below as references but before you proceed, make sure that you create a System Restore point first.

Option 1 – Try to use the Registry Editor

If you have already upgraded from Windows 10 Home to Windows 10 Pro and you’re having trouble with its Activation, then you might want to apply some registry tweaks to fix the problem. How? Refer to these steps:
  • Tap the Win + R key combination to open the Run dialog box.
  • Then type “Regedit” in the field and click OK or tap Enter to open the Registry Editor.
  • Next, navigate to this registry key: ComputerHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersion
  • From there, look for a DWORD named “EditionID” and once you found it, double click on it and change its Value data to Windows 10 Professional.
  • After that, look for another DWORD named “ProductName” and double click on it to change its Value data to Windows 10 Professional.
  • Once you’re done, restart your computer to apply the changes made successfully.

Option 2 – Try to use Command Prompt

If the registry tweaks you applied didn’t fix the Activation error, then you can try using Command Prompt instead. Note that you can use this option in both scenarios pointed out above.
  • First, you have to insert a bootable drive of the Windows10 installer.
  • Next, tap the Win + X keys and select Command Prompt (Admin) from the menu.
  • After opening Command Prompt as admin, navigate to the root location of the bootable drive inside the Command Prompt command line.
  • Once you’re already there, type the following command and tap Enter:
setup.exe /auto upgrade /pkey <YOUR WINDOWS 10 PRO EDITION PRODUCT KEY>
After entering the command, check if it was able to fix the Windows Upgrade or Activation error 0xc03f6506. If not, refer to the next given option below.

Option 3 – Try to disable the Network Adapter

Just like the second option, you can also use this option for both the given scenarios above.
  • Tap the Win + X keys and select Network Connections from the menu.
  • This will open the settings for your network and on the left side panel, click on the “Change adapter settings” link. This will open Control Panel.
  • From there, click on the network your computer is connected to, and then right-click on the Network Adapter that you are using and select Disable.
  • After disabling the Network Adapter, try to switch to the edition of your copy of Windows 10 again and see if the problem is now fixed and don’t forget to double click on the disabled Network Adapter to get back on the Network.
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Fix Your PC can’t project to another screen
In case you don’t know, Windows 10 comes with a native ability to project to another screen, be it wireless or wired. All it takes to do that is by tapping the Win + P key combination to display options to manage the extended display. However, there are times when you might encounter errors when you do that like the “Your PC can’t project to another screen” error. This kind of error stops you from projecting your computer to the other screen. Here’s the full content of the error message:
“Your PC can’t project to another screen, Try reinstalling the driver or using a different video card.”
This error could be due to loosely connected hardware or the display adapter. It is also possible that a recent Windows Update has messed up its settings. To resolve this issue, you can try several suggestions that will be given in this post. You can try to check the hardware cable connections or run the Hardware and Devices troubleshooter. You could also update or reinstall the display adapters or replace the graphics card.

Option 1 – Try checking the hardware connections

The first thing you have to do before you further troubleshoot the problem is to check the hardware connections of your computer and see if there are damaged ones, just like with the ports as it would also affect the overall connectivity of the device with the computer. You also have to make sure that no pin is missing from the ports. So if you notice some irregularities in the connecting cable physically, you might have to buy another one and replace it and then see if it fixes the problem or not.

Option 2 – Run the Hardware and Devices Troubleshooters

  • The first thing you need to do is click on Start and then on the gear-like icon to pull up the window for Settings.
  • After opening Settings, look for the Update and Security option and select it.
  • From there, go to the Troubleshoot option located on the left-hand side of the list.
  • Next, select Hardware and Devices from the list and open the Troubleshooter and run it. Once it is doing its job, wait for it to complete the process and then restart the system.
  • After the system restarts, check if the problem’s now fixed. If not, refer to the next option given below.

Option 3 – Try to update or reinstall the display adapters

You might also want to update the drivers for Display adapters and Monitors or you might also have to update or reinstall your NVIDIA driver if you’re using one. To update or reinstall the display adapters, follow these steps:
  • Tap the Win + R keys to open the Run dialog box and then type in MSC and tap Enter or click OK to open the Device Manager.
  • Expand the section for Display Adapters.
  • And then select the Display Driver and right-click on it.
  • From the drop-down menu, select the Update Driver option and follow the on-screen instructions to install the latest version of the Display Driver.
  • Restart your PC after the installation.
If you find that updating the drivers does not help, you can try to reinstall them. How? Simply follow the steps below.
  • Tap the Win + X keys and select the Device Manager.
  • After that, look for the affected driver in the Device Manager window. And if you see a yellow exclamation mark beside it, right-click on it and select the option “Rollback” to roll back the driver.
  • And if the Rollback option is not available, just select Uninstall and then restart your PC.
  • Finally, open the Devices Manager once again and select the option “Scan for hardware changes” to install the driver.

Option 4 – Consider replacing the graphics card

You might also want to consider replacing the graphics card of your computer to resolve the problem if the options provided above didn’t work.
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