How to Patch Windows Error Code 45

What is the Registry Error Code 19?

Code 19 is a Windows PC error code that indicates a damaged or corrupt registry. This code usually appears when trying to start a connected device, the DVD/ CD ROM drive. Code 19 is a type of Device Manager Error code. When you experience Code 19, the error message is displayed on your Windows screen in either of the following formats:

"Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. To fix this problem you should uninstall and then reinstall the hardware device. (Code 19)"

"Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. To fix this problem you can first try running a Troubleshooting Wizard. If that does not work, you should uninstall and then reinstall the hardware device. (Code 19)"

You might encounter other error messages such as error code 42.

Error Causes

Typically the underlying cause of this error code is problems in the registry. The error should be fixed timely without any delays before the damage sets in. Registry issues are critical PC errors. If not resolved it can lead to system freeze, crash, and failure. You are most likely to lose all your important data.

Further Information and Manual Repair

If you have come across this error on your computer, you don’t need to panic. Though this is a serious issue the good news is that it is easy to resolve. You don’t have to be a computer programmer, technically sound or hire a technician to fix the error on your system. Here are a couple of ways to work your way out of this problem:

1. Uninstall and then Reinstall the  DVD/CD ROM Drive

For this here’s what you need to do: simply click on the start menu, and type Device Manager in the search box, and press enter. When the device manager window opens locate the DVD/CD ROM drives. Click on the + sign to expand it. Now right click on the DVD drive click uninstall. After doing this, restart your PC. On the restart, Windows should automatically detect and reinstall the DVD driver. Once the driver installation is complete now see if the DVD drive works. If the error still appears, then you need to repair the registry by deleting the corrupt registry entries. You can download drivers automatically by using a tool such as Restoro.

2. Trouble Shooting Method to Delete the Corrupt Registry Entries

To remove the corrupt registry entries, go to Start and select Run. Type ‘Regedit and press enter to open the registry editor windows. To continue you may be asked to enter the administrator password, insert it to proceed. Now the registry window will be displayed. Here locate the registry key HKEY_LOCAL_MACHINE, then navigate to the following sub registry key HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{4D36E965-E325-11CE-BFC1-08002BE10318} Here you will see the upper filters registry entry in the right pane. Right-click on the upper filter and select delete. You will be prompted for the confirmation for deletion. Click on the yes tab to confirm. Exit the editor and restart your computer. If you are not technically sound, this may be a little confusing for you, and besides it does not guarantee to resolve all the registry issues on your PC so chances are that Code 19 error may reappear in a short time. To resolve registry issues for the longest time and ensure that errors like Code 19 don’t pop up every now and then, you need to perform proper and in-depth registry cleaning. For this, it is advisable to download Restoro.

Windows 11 brought with it a simplified right-click menu that has limited options. If you would like to bring the old Windows 10 right-click menu you will have to do some registry tweaking but it is doable. Since this requires registry tweak, please follow given solution step by step

1. Press Start and type RegEdit
2. Click on Registry Editor
3. Inside registry editor find next key: Computer\H_KEY_CURRENT_USER\SOFTWARE\CLASSES\CLSID\
4. Right click in the right part of editor window and select New > Key
5. Type in as a name: {86ca1aa0-34aa-4e8b-a509-50c905bae2a2}
6. Right click on {86ca1aa0-34aa-4e8b-a509-50c905bae2a2} key and select New > Key again to create new key inside this one
7. Name inside key InprocServer32
8. Double click the “(Default)” key in InprocServer32 to open it
9. When the Default key opens close it without making any changes by clicking on OK. This will make its value property Blank instead of value not set
10. Close Registry Editor
11. Restart your PC

Once the system is up if the followed solution is applied you will now have an old school menu once right-click is used.

Each time you open an application inside your Windows 11 operating system, it is opened with standard privileges. Now, please note that your account privileges and application privileges are two different things, you might be the administrator of the system but when you open the app, it still opens with standard privilege. Most of the time running applications with typical settings is fine but from time to time we might have some applications that will require running with administrator privilege in order to work properly. In this case, it is very easy to do it, you just right-click and choose run as administrator. Although a very easy solution, it can be quite annoying if running the app is on a daily basis or even more times per day. If this is the case then right-clicking and choosing to run as administrator can be a daunting task, sometimes you can even forget to run it like this in heat of work and some unforeseen consequences might occur. Luckily there is an easy hack so you can open the chosen application each time as an administrator with a simple double click each time.

Setting application to run as administrator always

1. Locate application executable file
2. Right-click on in and choose properties
3. Click on the Compatibility tab
4. Check the box next to Run this Program as an Administrator
5. Click on Apply
6. Click on OK

From now on each time you open an application normally with a double click, it will be opened as administrator privileges.

What is Windows Update Error 0xC1900209? Before you can install any updates on your Windows 10 computer, there are a lot of conditions that have to be fulfilled and one of these conditions is software compatibility. It is one of the important factors in installing Windows Updates. So if one of the software in your computer is not compatible with the new Windows Update for your OS, then the Windows 10 setup will not proceed and will block the installation of the new update. This both applies to the cumulative updates and feature updates. In such cases, you will get the following error message when you run Windows Update:

“0xC1900209, Incompatible software is blocking the upgrade process. Uninstall the application and try the upgrade again.”

This error message comes under the umbrella of the Windows 10 pre-upgrade validation using Setup.exe. And for you to identify the incompatible app, you need to grab a Windows 10 install image using the Windows Media Creation tool to download the suitable Windows 10 version and mount it. After that, execute the setup.exe file that’s located in the root folder of the Windows 10 install image. Once you execute the setup file, the upgrade wizard will give you a list of incompatible apps. Once you have determined which software is not compatible with the Windows Update, there are two options you can try to resolve the Windows Update error 0xC1900209 – you can either try to update the conflicting software or uninstall it. For more details, follow the given options below.

Option 1 – Try to update the conflicting software

If you are using an older version of the software that’s in conflict with the Windows Update, you might want to update it to its latest version and then try to apply the updates again to your Windows 10 computer. You can update the concerned software by visiting the official website of the software or any of its distribution sources. On the other hand, you can also use the Check for updates feature of that particular software if it’s available.

Option 2 – Try to uninstall the conflicting software

If updating the problematic program didn’t work, the next option you can try is to uninstall it. All you have to do is follow these steps to uninstall it successfully:

• Tap the Win + R keys to open the Run dialog box.
• Then type “appwiz.cpl” in the field and tap Enter to open the Programs and Features in Control Panel.
• Next, arrange the list of installed programs in the order of the installation date.
• After that, look for the problematic program and right-click on it, and then select Uninstall.
• Once the uninstallation process is done, restart your computer and see if the Windows Update error 0xC1900209 is fixed or not.

BIOS is software that is running in a chip located on your motherboard, you can enter BIOS usually by hitting DEL once the computer is turned ON but this sometimes varies and it depends solely on the motherboard manufacturer. Inside BIOS you can configure your computer components and set up some other important things including passwords for BIOS itself or for the entire system. Password itself is meant to protect access to BIOS from other non-technical users or to prevent access to the system from other people if for example computer is in one household and you would like to be the only one having access to it. However, passwords can be forgotten, and sometimes you can even purchase a second-hand computer with a password on it. In this guide, we will lead you through ways on how to remove your BIOS password so you can regain access to your BIOS settings.

1. Use Manufacturers master password

   Most motherboard manufacturers have built-in a couple of master passwords for BIOS access. If your motherboard has one you can easily find it on the manufacturer's website. Use the master password and remove other passwords inside BIOS, save and exit.

2. Remove CMOS battery

   If you could not find the manufacturer's master password or your motherboard model does not have one remove the CMOS battery to reset BIOS. Note that this method will reset the whole BIOS not only the password. Open on side of your computer casing and locate the round battery on it, do not worry, there is only one battery so you can not make mistake. Remove the battery and leave it outside for around 20 to 30 minutes then place it back as it was, CMOS is reset now and you can access BIOS.

3. Reset BIOS via jumper

   If you want to remove only the password and do not touch other BIOS setting you can locate the BIOS password reset jumper. How the location of this jumper and position is different from the motherboard to motherboard we can not cover them all here and it is advisable to read the manual or find information on the official manufacturer's website.

If you would like to read more helpful articles and tips about various software and hardware visit errortools.com daily.

FullTab is a Browser Extension for Google Chrome, Firefox, and Internet Explorer. When installed this extension hijacks your home page, and changes your default search engine to http://search.fulltabsearch.com. This extension usually comes bundled with other freeware software, and while installed it monitors your internet browsing activity, visited links, clicked pages, and other private information that it later uses to distribute targeted unwanted ads in your search results.

While this extension is installed, you will see modified search results, injected ads, sponsored links, web page redirects, and sometimes even pop-up ads. Several anti-virus scanners have detected this extension as a Browser Hijacker, and due to the information it is gathering from your computer it is not recommended to keep.

About Browser Hijackers

Browser hijackers (sometimes called hijackware) are a kind of malicious software that modifies web browser configuration settings without the user’s knowledge or consent. These hijacks appear to be increasing at an alarming rate globally, and they can be truly nefarious and sometimes harmful too. Browser hijackers are capable of doing more than just changing home pages. Usually, browser hijacking is utilized for earning advertising revenue that comes from forced ad clicks and website visits. Most people believe that such websites are legitimate and harmless but that is not the case. Almost every browser hijacker poses an actual threat to your online safety and it is necessary to categorize them under privacy risks. Browser hijackers can also let other vicious programs without your knowledge further damage your personal computer.

Browser hijacking signs and symptoms

There are numerous signs that indicate the web browser is hijacked: 1. your browser’s home page is suddenly different 2. you find redirected to internet sites you never meant to visit 3. the default web browser settings are modified and/or your default web engine is altered 4. you find unsolicited new toolbars added 5. unstoppable flurries of pop-up advertisements appear on your personal computer screen 6. webpages load slowly and sometimes incomplete 7. you can’t navigate to specific web pages, like computer security software-related sites.

Precisely how browser hijacker infects computers

There are many ways your PC can get infected with a browser hijacker. They usually arrive through spam e-mail, via file-sharing networks, or by a drive-by download. They are usually included with toolbars, BHO, add-ons, plug-ins, or browser extensions. Browser hijackers sneak to your pc in addition to free software application downloads also that you unintentionally install along with the original. Examples of popular browser hijackers include Fireball, GoSave, Ask Toolbar, CoolWebSearch, RocketTab, and Babylon Toolbar. The presence of any browser hijacker on your system can considerably diminish the web browsing experience, record your internet activities that lead to troublesome privacy concerns, diminish overall computer performance and cause application instability as well.

Removal

Some browser hijacking can be quite easily corrected by identifying and removing the corresponding malware software through your control panel. However, most hijackers are very tenacious and require specialized tools to remove them. And there’s no denying the very fact that the manual fixes and removal methods can certainly be a difficult job for a rookie PC user. Additionally, there are many risks associated with tinkering around with the pc registry files.

Virus Blocking Access To Safebytes Website And Anti-Malware Downloads - What You Should Do?

All malware is inherently dangerous, but certain types of malicious software do much more damage to your computer than others. Some malware is meant to interfere with or block things that you’d like to do on your computer. It may not allow you to download anything from the net or prevent you from accessing a few or all sites, especially antivirus websites. If you are reading this article now, you have probably recognized that a malware infection is a reason behind your blocked internet traffic. So how to proceed if you want to install an antivirus program such as Safebytes? There are some actions you can take to get around this problem.

Start Windows in Safe Mode

Safe Mode is actually a special, basic version of Microsoft Windows where just minimal services are loaded to counteract viruses and other troublesome programs from loading. If the malware is blocking the internet connection and affecting your PC, running it in Safe Mode will let you download anti-malware and run a scan while limiting possible damage. In order to enter into Safe Mode or Safe Mode with Networking, press F8 while the computer is booting up or run MSCONFIG and look for the “Safe Boot” options under the “Boot” tab. After you restart into Safe Mode with Networking, you can download, install, as well as update the anti-malware program from there. Right after installation, run the malware scanner to eliminate most standard infections.

Utilize an alternate internet browser to download an antivirus program

Malicious program code could exploit vulnerabilities on a specific web browser and block access to all anti-virus software websites. If you appear to have a virus attached to Internet Explorer, then switch over to a different browser with built-in safety features, such as Firefox or Chrome, to download your preferred antivirus program – Safebytes.

Make a bootable USB anti-virus drive

Another solution is to store and run an antivirus program completely from a Thumb drive. Do these simple measures to clean up your affected computer using portable anti-malware. 1) On a virus-free computer, download and install Safebytes Anti-Malware. 2) Put the pen drive into the uninfected PC. 3) Double-click on the downloaded file to run the installation wizard. 4) When asked, select the location of the pen drive as the place where you would like to store the software files. Do as instructed on the screen to finish up the installation process. 5) Now, insert the USB drive into the corrupted PC. 6) Run the Safebytes Anti-malware directly from the pen drive by double-clicking the icon. 7) Hit the “Scan Now” button to start the virus scan.

Ensure the Safety of Your PC by Using SafeBytes Anti-Malware Software

Do you want to install the best anti-malware application for your laptop? There are many applications available in the market that comes in free and paid versions for Windows systems. Some of them are great, some are decent, and some will affect your PC themselves! You need to go with a tool that has obtained a good reputation and detects not only computer viruses but other types of malware too. While thinking about trustworthy applications, Safebytes Anti-Malware is certainly the highly recommended one. SafeBytes anti-malware is a powerful, very effective protection application designed to assist users of all levels of IT literacy in finding and removing malicious threats from their personal computers. After you have installed this program, SafeBytes sophisticated protection system will make sure that absolutely no viruses or malicious software can seep through your computer. SafeBytes has outstanding features when compared to various other anti-malware programs. A few of them are given as below: Real-time Threat Response: SafeBytes provides round-the-clock protection for your personal computer restricting malware intrusions instantly. They’re extremely effective in screening and eliminating different threats because they’re regularly improved with new updates and safety measures. World-class AntiMalware Protection: With its advanced and sophisticated algorithm, this malware removal tool can detect and get rid of the malware threats hiding within your PC effectively. Quick Multithreaded Scanning: SafeBytes’s high-speed malware scanning engine cuts down scanning times and extends battery life. Simultaneously, it will effectively detect and eliminate infected computer files or any internet threat. Web Security: Through its unique safety rating, SafeBytes alerts you whether a site is safe or not to access it. This will make sure that you’re always certain of your safety when browsing the world wide web. Lightweight: This tool is not “heavy” on the computer’s resources, so you’ll not see any overall performance difficulties when SafeBytes is operating in the background. 24/7 Live Professional Support: You can obtain high levels of support round the clock if you’re using their paid software.

Technical Details and Manual Removal (Advanced Users)

To eliminate FullTab manually, navigate to the Add/Remove programs list in the Windows Control Panel and select the program you want to get rid of. For internet browser extensions, go to your web browser’s Addon/Extension manager and select the add-on you want to disable or remove. You’ll probably also want to reset your browser. To ensure the complete removal, find the following Windows registry entries on your system and remove them or reset the values accordingly. However, this is a challenging task and only computer professionals could carry it out safely. Moreover, certain malware keeps replicating which makes it difficult to eliminate. You are advised to do this process in Safe Mode.

One of the most useful built-in tools in Windows 10 is the Check Disk or CHKDSK utility. It is the one that maintains the integrity of the disk that’s connected to a computer which can be launched using the GUI or graphical user interface and using the command line. There are a lot of things that warrant the running of this built-in utility and one of these things is the readability of the disk. Recently, a number of users reported that they encountered an error when they tried to run the CHKDSK utility – the error states, “Cannot open volume for direct access”. This kind of error in CHKDSK appears each time the command line is launched according to the affected users. As per the users who encountered this issue, they receive the following error messages when they tried running a ChkDsk command:

“C:WINDOWSsystem32>chkdsk /f g: Cannot open volume for direct access. C:WINDOWSsystem32>chkdsk /f f: The type of the file system is NTFS. Volume label is 0529357401.”

To fix the “Cannot open volume for direct user access” error, here are some suggestions that might help. Follow them carefully.

Option 1 – Try running the CHKDSK utility on Boot

On the other hand, you can also try to run the CHKDSK utility on Boot so you can fix the error and recover any damaged segments of the drive.

• Open an elevated Command Prompt and enter this command: chkdsk /x /f /r
• After that, you will a message that says, “Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)”
• Type Y and tap Enter to schedule a CHKDSK scan once your computer reboots next time.

Option 2 – Try to run the Primary Hard Disk Self Test

The next thing you can do to fix the problem is to run the Primary Hard Disk Self Test by following the steps below.

• You need to boot your computer into the BIOS first.
• After that, go to the Diagnostics tab and select the “Primary Hard Disk Self Test” option. Note that it may be different depending on the motherboard with different manufacturers but they should imply the same thing.
• Now, wait until the test is completed, and then boot your computer normally.

Option 3 – Try to check the hard drive’s health

The next thing you can do to resolve the issue is to check the health of your hard drive using the WMIC utility in the Windows Command Prompt. This utility will check if your hard drive has any problems which resulted in the “Cannot open volume for direct user access” error.

Option 4 – Try to disable various restrictions on your hard drive

You might also want to disable the various restrictions on your hard drive since it is possible that it is encrypted or restricted which explains why you are unable to perform any operations in it and throws the “Cannot open volume for direct user access” error instead. For instance, if you have BitLocker, you can try to disable it and see if it fixes the error or not.

Option 5 – Try to uninstall or disable the Drive Locking feature on your hard drive

You could also look for any Drive Locking feature on your hard drive that tricks disk changes as it might be the root cause of the problem. Thus, if you find one, you need to either uninstall or disable it and then execute a check disk command to resolve the problem.

Option 6 – Try to disable the application service

Disabling the application service can also help you fix the problem. How? Refer to these steps:

• Tap the Win + R keys to launch the Run utility and type “services.msc” in the field and then hit Enter to open the Services Manager.
• Next, scroll down among the list of services and look for the service related to the security software or disk checker software.
• Once you find it, right-click on that service and select Properties.
• After that, change its Startup type to Disabled and click on the OK and Apply buttons to save the changes made.
• Now restart your computer and don’t forget to enable the service back once the disk check is completed.

Option 7 – Try to use Repair Volume via Windows PowerShell

You could also try to use the Repair Volume using Windows PowerShell. All you have to do is open PowerShell as admin and type the “repair-volume -drive letter <DRIVE LETTER>” command and then tap Enter to run Repair Volume. This should resolve the error.

In case you don’t know, Windows contains a feedback mechanism that generates error reports from hardware and software problems. These reports are temporarily stored in the system and send them back to Microsoft so that it can find solutions to the reported problems and fix them in the upcoming updates.  However, as time goes by, these reports actually take a lot of space in your computer which is why end-users like you are free to delete them with the help of the new Free Up Space feature in Windows 10. As useful the Free Up Space feature may be, there are times when you won’t be able to use it for some reason which is why in this post, you will be guided on how to use alternative ways in deleting very large System queued Windows Error Reporting file, some of which may run in Gigabytes. Every time the Windows Error Reporting or WER sends out an error file and looks for a solution, the WER server at Microsoft sends out a solution instantly. And if the solution is under investigation or is unknown, then you will be notified about it right away and will be asked for more details. As mentioned, even though the Free Up Space feature in Settings will be able to clear the error reporting files, there are instances when it won’t be able to delete very large System queued Windows Error Reporting files. Alternatively, there is an option to delete these files using the Disk Cleanup Utility. Feel free to select which option you’d like to use to get rid of Windows Error Reporting Files.

Option 1 – Delete Windows Error Reporting Files via Settings

• Go to Settings.
• From there, go to System > Storage > Free Up Space and then click on it to launch it.
• Afterward, give it some time to populate all the files and folders. Once it’s done, select “System created Windows Error Reporting files” to mark its checkbox while leaving the other options unchecked.
• Next, click on the Remove files button to delete all the Windows Error Reporting files from your computer.

Option 2 – Manually delete the Windows Error Reporting Files

• Tap the Win + E keys to open File Explorer.
• Next, enable the Hidden Files view from the menu.
• Then go to C:/ProgramData/MicrosoftWindowsWER.
• From there, you will see various folders like LocalReportArchive, ReportArchive, ReportQueue, and Temp.
• Open each one of the aforementioned folders and delete the archive files. Note that these files will have names similar to “00c58c1f-b836-4703-9bcf-c699ca24d285”.

Note: If you are not able to delete any of these files, you have to take ownership of the folder. To do so, refer to these steps:

• Right-click on the folder and then select Properties.
• Next, click on the Edit button in the Properties window and click OK to confirm if you got a User Account Control elevation request.
• After that, select user/group from the permission windows or click on the Add button to add another user or group. It would be best if you add “Everyone” to give permission.
• Then check “Full Control” under the “Allow” column to assign full access rights control permissions.
• Now edit the permission to Full Control for “Everyone”.
• Click OK to save the changes made and then exit.

On the other hand, if you do not want to go through all these troubles in deleting the Windows Error Reporting files, you can just disable it especially if it already becomes a daily annoyance as the files generate every day and their sizes are mostly gigabytes. And besides, there are times when these files do not make it to the Microsoft WER server and end up only occupying a lot of space for nothing.

Microsoft has officially announced details about the newest upgrades to its office 365 suite moving forward along with its new OS release. It seems that Microsoft has listened to its user base and feedback since Word, Excel, and PowerPoint are getting much-needed redesign taking into account many suggestions from the community. The new office should feel more like an application suite guiding focus on the interconnection of applications themselves providing users with a much more natural experience of using them.

The new office features so far

From Microsoft themselves:

“This Office visual refresh is based on feedback from customers who asked for a more natural and consistent experience within and between your applications, specifically on Windows. With this update, we deliver an intuitive, coherent, and familiar user interface, using the Fluent Design principles, across all your applications: Word, Excel, PowerPoint, OneNote, Outlook, Access, Project, Publisher, and Visio. We aligned this visual refresh with the design of Windows 11 to provide seamless experiences on your PC.”

It is always refreshing to hear when a company listens to its user base and actually does what is needed instead of trying to invent the wheel.

How to switch

Since beta is already rolling and if you have an active 365 subscription to office suite visual refresh will be automatically available to all Office insiders running beta channel builds. It can be turned on and off using the coming soon feature in the top right corner of the menu in any application. Just click on the megaphone icon to open the coming soon pane and apply settings to all office apps. Note that The Coming Soon feature is not available in Access, Project, Publisher, or Visio. If you turn on the visual refresh in any of the 4 apps mentioned above (Work Excel, PowerPoint, or OneNote), it will also be available in these 4 apps.

Difference themselves

The Home tab menu still has a familiar look with a few tweaks. For example, accessing frequently used Word commands will be a lot easier. By navigating to Designer > Show Quick Access Toolbar, users can add a customizable shortcut ribbon to Word that houses conveniently placed options. Also, the office will not match your Windows operating system color theme so if you have a dark theme enabled, the office will also have a dark color theme. Color palettes are more neutral, corners are a bit softer but customizable ribbons are a win here for me.

Conclusion

There was not much said other than visual upgrades and small tweaks that were supposed to make your life easier but then again Windows 11 itself is in the same boat. I am not sure if this is a great update offering just some visual tweaks and focus on workflow mechanics or just being plain lazy and trying to cash in visuals as a completely new product.

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.