An Easy Guide to Fixing Error Code 12

Bttray.exe Application – What is it?

Bttray.exe is basically a Bluetooth Tray Application. Bluetooth Tray Application is developed by WIDCOMM. It provides a system tray icon that allows users to see the status of their Bluetooth connections at a glance. It allows you to easily access the configuration and settings for the Bluetooth products enabling you to change the configuration of the Bluetooth devices. The bttray.exe application error may pop up on your computer screen due to some issue with the Bluetooth software. The process fails to initialize and therefore stops working. Bttray.exe application error code is  displayed in the following format:

• “BTTray.exe can’t initialize (0xc0150004).”
• “BTTray.exe – System Error”

Though this is not a fatal or critical computer error it is advisable to resolve it otherwise it will hamper your access to Bluetooth software and cause you a great deal of inconvenience.

Solution

Error Causes

Bttray.exe application error code may be triggered due to one of the reasons stated below:

• Bttray.exe application is damaged
• Bttray.exe is accidentally removed from your PC
• The Bluetooth software or driver becomes problematic.
• Some modules that run by the process are corrupt
• Malware infection
• Invalid registry entries

Further Information and Manual Repair

If you experience a bttray.exe application error code on your system, it is recommended to fix it right away. To resolve this error you don’t have to be a computer programmer or a technical whiz or have to hire a professional and spend hundreds of dollars in repair. It is easy to fix, simply follow the manual methods given below:

Method 1- Reinstall Bluetooth Software

If the Bluetooth Software is damaged or outdated, the bttray.exe will also not work. If this is the cause of the error code, then simply reinstall Bluetooth software on your system. To do this, first, uninstall the current software and then download the latest version of the Bluetooth Software on your PC. To uninstall click start, go to the control panel, and then programs. Now select Bluetooth software and click uninstall to remove it. After that, install the latest version and update it. To activate changes

Method 2: Scan for Malware

Sometimes the bttray.exe application error code may pop up due to malware and viral infection. To fix it, download a powerful antivirus. Scan and remove malware to resolve.

Method 3: Clean Registry

The registry basically saves all the activities being performed on the PC including junk and obsolete files. If the registry is not clean frequently, unnecessary files like cookies, junk files, temporary files, and internet history can take up a lot of space and cause the registry to damage. Due to this error code like the bttray.exe application can also pop up. To resolve, clean the registry. You can do it manually but that may be difficult and time-consuming if you are not a computer programmer. However, a good alternative would be to download Restoro. This is a user-friendly and next-generation PC Fixer deployed with multiple utilities like a registry cleaner and an antivirus. Simply run it to remove viruses and clean the registry. Click here to download Restoro and resolve the bttray.exe application error now!

Hello and welcome to our software series review. Weel this time we could say this is more of a service review since the application we are going through today is online and you can use it freely without ever needing to install it.

When we choose software that we are going to review and recommend we really try to recommend something that is worth your time and money, Cartoonize fits in both categories in my opinion.

First of all basic plan of this graphic software is completely free and as mentioned it is working online, also as one more feature basic plan does not even require you to have an account of any kind, all you need to do is go to the website of the application and you can start using it right away. There is also paid plan for extra features if you need them billed monthly or annually.

Features

First things first, this is not Photoshop or GIMP and it does not aim nor want to be. This is something else, directed and pointed at the different types of users. This application is aimed at people that want to make some quick graphics and post them on social media and it does that very well. Even without knowledge to use graphic software this one is so well designed and straightforward that even a complete newcomer can do something right away.

So as the application that wants to be used by people that want to place some cool pictures or ads on their social media what it offers. For starters simplicity and ease of use, every option that you can use is on the left side of the screen nicely packed into the vertical toolbox. Inside the toolbox, you have access to various tools, effects, and filters that you can apply to your image.

Tools explained

Image manager

The first section on the tool panel is the image manager, here you can upload your images, delete them, search stock images, and so forth. nothing more to say about this one as it is only a basic file manager.

Edit

In this tool panel, there are a lot of basic settings for your image manipulations divided into 3 sections: Basics, Enhance, and Creative. In the basic section, you can crop, resize and rotate your image. Enhance panel will let you set exposure, color, vibrance, tint, and details (sharpen). Finally, the Creative part will let you remove the background with AI in a single click, replace colors in the image, and add a vignette and round image.

Effects

In the effects panel, you will be given 4 options to choose from Cartoonizer, Digital art, Sketcher, and painting. Each option once clicked will open another set of options tied to chosen preset where you will be able to choose a different style from chosen template. Once you click on the desired template it will be applied to your image and in the upright corner, you will have edit options to tweak it to your liking. You can play around as much as you want because only once you click on the apply button, the effect will be applied to your image.

Filters

Same as in the effects tool panel here you will also get a series of different filters that you can apply to your image. As in the previous tool once clicked on the chosen filter, you will be given options for its variations and details edits. How there is really plenty of filters options and combined with its own presets I will not focus on explaining what each one is doing since picture thumbnails are pretty accurate and just one look at them will explain to you everything you need to know.

Overlays

In the overlays panel, you can as the name says overlay different kinds of effects on your image. You can add snow, fog, sun flares rain, and many more. Presets work identically to previous effects and filters.

Masks

If you want to place your image in a certain shape or in-text this is the section for you. You will be presented with sections as custom text, shapes, brushes, floral, animals, and patterns. Each section will once again lead to plenty of variations on the chosen subject where you can pick one that you like the most and tweak its options.

Text

As the name suggests, this section is to add text to your picture or design. If you are making some cool ad for Facebook, Instagram, or other social media I believe that you will spend most of your time in this section adding text and tweaking it so it looks best. You have all the tools that you will need to make a catchy title or smaller block of text and you can add multiple texts to your picture tweaking their own visual appearance, the font used, color, and some effects like a drop shadow.

Draw

In the draw section, you will be able to freely draw whatever you like with your mouse or pen if you have one. you have basic options for a brush and eraser so you can erase stuff. Pretty basic tool but it gives a nice touch to underline something, circle it, etc.

Graphics

This panel will let you place various already made graphic assets into a picture. You have hearts, hats, glasses, etc. There really are tons of premade graphics along with thematic ones like new year, st. Patric day and more.

Frames

As the name suggests this section will place a frame of your choice around your picture. You can choose the style of frame, position, color, and many more. There are various styles and each style has its own options.

Conclusion

Cartoonize is a great online application that will let you quickly and easily do cool and nice image edits. As mentioned you can also add various effects, text, and graphics and use this app to make some quick and nice ads for social media. You have the option to publish to your social media right from the app in the save dialog but you can also of course download your image or design to your local computer.

Please note that for this review we used the pro, paid version so all of the features were unlocked. We wanted to give you a full overview of the full potential of the app. In my opinion, the small monthly fee that they charge is well worth it when you see all things that you can do with it.

Go to the cartoonize website and check it out, basic option is completely free and it does not even require making an account. Have fun, be creative and take care, I hope to see you again tomorrow.

Hello everyone and welcome to our useful tips and tricks and problem-solving article blog. This time we are doing something different, instead of solving issues this time we are focusing on some quality of life tips like keyboard shortcuts in your Windows 10.

Shortcut Keys	Description
Windows Key	Opens/closes the Start menu.
Windows Key + Up Arrow	Maximizes the selected window.
Windows Key + Down Arrow	Reduces the window size. (Restore down.)
Windows Key + M	Minimizes all open windows.
Windows Key + Shift + M	Opens minimized windows.
Windows Key + Tab	Shows Task View.
Windows Key + L	Locks the screen.
Windows Key + A	Opens the Action Center.
Windows Key + V	Opens Clipboard History.
Windows Key + I	Opens the Settings menu.
Windows Key + F	Opens the Feedback hub.
Windows Key + H	Opens the dictation toolbar.
Windows Key + P	Opens the projection settings.
Windows Key + . (Windows Key + ;)	Opens the emoji panel.
Windows Key + C	Opens Cortana in listening mode.
Windows Key + C (Windows Key + Q)	Opens Windows Search.
Windows Key + G	Opens the Xbox game bar.
Windows Key + X	Opens the secondary start menu.
Windows Key + <number>	Opens the app in the taskbar relative to the number input. For example, if Chrome is the fourth app on the taskbar, using Windows Key + 4 will open Chrome.
Windows Key + Alt + <number>	Opens the right-click menu for the app in the taskbar relative to the number input. For example, if Chrome is the fourth app on the taskbar, using Windows Key + Alt + 4 will open Chrome’s right-click menu.
Windows Key + D	Shows/hides open apps on the desktop.
Windows Key + E	Opens File Explorer.
Windows Key + U	Opens Ease of Access in the Settings menu.
Windows Key + Print Screen	Takes a screenshot of the desktop.
Windows Key + Control + F	Opens the Find Computers window.
Windows Key + Control + D	Creates a virtual desktop.
Windows Key + Control + Left Arrow	Switches to the virtual desktop on the left.
Windows Key + Control + Right Arrow	Switches to the virtual desktop on the right.
Windows Key + Control + F4	Closes the active virtual desktop.
Windows Key + Space	Switches between installed languages (for writing text).

If you are trying to copy large files that are over 4GB to a USB flash drive or SD card, but you suddenly get an error message saying, “File Too Large, The file is too large for the destination file system”, read on as this post will help you fix this problem. A user recently reported that while trying to copy a 4.8GB zipped file from a Windows 10 PC to a new 8GB USB drive but only got the File Too Large error message instead. If you share the same problem with this user and you know that there is more than enough available space for the file in your USB drive or SD card, continue reading until you get to the instructions provided in this post so that you will be able to copy the file successfully. It is most likely that the USB drive has been FAT32 formatted which is why you’re unable to copy the file and got an error. The FAT32 file system has a built-in limitation on the size of the individual file that it may contain. For instance, it’s 4GB so even though collectively, it may have files or even 1TB individually it shouldn’t be more than 4GB. Thus, you need to change the file system from FAT32 to NTFS. To do that, carefully follow the instructions provided below.

• Step 1: Connect the USB drive and open the Windows File Explorer.
• Step 2: Afterwards, right-click on the USB drive letter and select Format from the context menu.
• Step 3: Next, select NTFS instead of FAT32 the instant a dialog box appears from the drop-down menu for the file system.
• Step 4: Now click on the Quick Format option and then click the Start button to reformat the USB drive.

Note: There is also another way you can change the file system. In this alternative way, you need to open an elevated Command Prompt and type the convert X: /fs:ntfs /nosecurity command, and hit Enter to execute it. Remember that in this command, “X” is the letter of your USB drive so whatever the letter of your drive is, you need to make sure to put it instead of “X”. Once the process is completed, try copying the file again.

One of the most common brands of GPUs that comes in a large number of computers is AMD’s Radeon Graphics processing units. AMD included the Radeon Settings panel so that users can control how the hardware functions. However, as of late, a lot of users reported that the Radeon Settings panel throws an error that says, “Radeon Settings are currently not available. Please try again after connecting AMD graphics” when they try to use it. This kind of error in the Radeon Settings panel is most likely caused by either corrupted drivers or incompatible drivers. If you are one of the users who are facing this problem, worry not for this post will guide you in fixing this error. You can either use the Device Driver Uninstaller or change the driver version. For more details, make use of the options provided below.

Option 1 – Try to use the Device Driver Uninstaller

The first thing you can do to fix the problem is to uninstall the AMD Radeon drivers by using the Device Driver Uninstaller software. After you’ve uninstalled the AMD Radeon drivers using this software, go to the official website of AMD to download the AMD Radeon drivers. Once you’ve downloaded them, you can install them by simply running the executable file. Once the installation of the new AMD Radeon drivers is done, try to open the Radeon Settings panel and see if the error is now fixed or not. If not, refer to the next given option below.

Option 2 – Try changing the Driver version

If you have followed the instructions in the first option then you can proceed to the next given steps below.

• Now that you’ve completely uninstalled the AMD Radeon drivers and reinstalled their latest working versions, check if the drivers are still updating. If they are, you need to stop them.
• To disable the drivers being automatically updated, you need to go to the Group Policy Editor by tapping the Win + R keys to open the Run utility and then type “gpedit.msc” in the field and tap Enter or click OK.
• After opening the Group Policy Editor, navigate to this policy setting: Computer Configuration > Administrative Templates > System > Device Installation > Device Installation Restrictions
• From there, double click on the “Prevent installation of devices that match any of these device IDs” policy setting to open a new window, and from this window, you will see the following description of the setting:

“This policy setting allows you to specify a list of Plug and Play hardware IDs and compatible IDs for devices that Windows is prevented from installing. 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 a device whose hardware ID or compatible ID appears in the list you create. If you enable this policy setting on a remote desktop server the policy setting affects the redirection of the specified devices from a remote desktop client to the remote desktop server. If you disable or do not configure this policy setting devices can be installed and updated as allowed or prevented by other policy settings.”

• Now set the radio button of the policy setting to “Enabled”. This will turn off the delete confirmation prompt. Note that setting the radio button to either Not Configured or Disabled will turn off the driver being automatically updated.
• Next, click on the Show button under the Options section. And in the field that pops up, type in the Hardware ID of your GPU and click OK. You can find the GPU’s Hardware ID under this location: Device Manager > <DEVICE NAME> Properties > Details > Hardware IDs
• Once you’re done, click the Apply and OK buttons to save the changes made.
• Close the Group Policy Editor and restart your PC and see if the “Radeon Settings are currently not available. Please try again after connecting AMD graphics” error is now fixed.

There are times when the Windows Search results do not include what you want to search. However, if you are trying to search for something that’s located on your desktop and Libraries, they would appear right away on the search results. Actually, the issue is not with the search but with the list of files and folders that Windows can index. If you encounter this issue, read on as this post will guide you on how to fix it. The Windows 10 operating system, ever since Windows v1903 was released, offers two kinds of searches – the classic and the enhanced search. You may have to add more folders to the classic search or use the enhanced mode to resolve the issue. In other words, to fix the problem with the Start Menu Search, you can try to enable the Enhanced Mode or add folders to the Class Search or remove the excluded folders, as well as run the Search and Indexing troubleshooter. For more information, refer to each one of the options provided below.

Option 1 – Try to enable the Enhanced Mode

To fix the problem, you have to enable the Enhanced Mode search and configure the folders you want to be indexed. How? Follow these steps:

• First, you have to go to Settings > Search > Searching Windows.
• Next, select the radio button for the Enhanced option.
• After that, select the folders you want the Windows Indexer to exclude from the Enhanced Search mode.

Option 2 – Try to add folders to the Class Search

If you don’t want to enable the Enhanced search mode, then you might want to add folders that are important to you. All you have to do is configure the Search Indexing Options by following these steps:

• Go to Settings > Search > Classic and from there, click on the “Customize search locations” option.
• Next, click on Modify in the pop-up window that appears.
• Then add drives and folders that are important to you. Once the indexing is completed, Windows will be able to find the file and display it in the search results.

Option 3 – Try removing the excluded folders

If you have already enabled the Enhanced mode but your files still don’t appear, then you might want to check out the excluded folder list.

• The first thing you have to do is go to Search and from there, you will find a list of folders under the Excluded folder list.
• Next, click on the excluded folder that you want to remove by clicking on the “Remove Excluded folders” button.
• If you are using the Classic search, you have to check if the index has restrictions on the file type. You can find it in Advanced options > File Types.

Note: If you want to search in Documents, you could also enable the Index Properties and File Contents. This should resolve the problem.

Option 4 – Try to run the Search and Indexing troubleshooter

You might also want to run the Search and Indexing troubleshooter in Windows 10 as it checks whether the settings for the Windows Start Search are in place and automatically corrects any issues if the update or software installation has changed the settings. To run it just click on the Start button and select Settings > Updates and Security > Troubleshoot. From there, select the Search and Indexing Troubleshooter.

Error 0x80070780 is a particularly nasty error since it means we can not access files on our hard drive. This might be an important file from work or anything similar and it can be frustrating when we can access it. In this article, we will address solutions to this error so you can continue with your activities where you have left off. Follow the guide step by step in the given order to minimize file damage and find the solution quickly.

1. Run File and Folder built-in troubleshooter

   The simple and clean solution, try first by running Windows built-in tools. Leave troubleshooter to scan and attempt repairs and try to access a file after that.

2. Run disk checker

   Maybe the file is corrupted or slightly damaged but repairable, run a built-in Windows disk checker and let it scan and repair any error found. Try accessing your file after the scan.

3. Try copying file

   If the file is under a bad sector or cluster on a disk drive that could be a reason why you can not access it, try copying the file to another location and then opening it, if the operation fails, boot Windows in safe mode and try to copy or move file then. If you are successful with copying files in safe mode, reboot your computer and try to open the file.

4. Reinstall the driver for the hard drive

   Like when the driver for USB is not working and you can not access files same can happen on your hard drive. Go to the device manager and reinstall the driver for your hard drive.

This post will walk you through fixing the rtwlane.sys Blue Screen error. This kind of BSOD error belongs under the category of the “DRIVER IRQL NOT LESS OR EQUAL” Stop errors. If you encounter this kind of Stop error then it means that a kernel-mode driver tried to access pageable memory at a process IRQL that was too high. The main issue with the rtwlane.sys Blue Screen error has something to do with the Realtek PCI-E Wireless LAN PCI-E NIC driver. In other words, it has some issues with the wireless card of your computer which is built by Realtek. And since it this error concerns your wireless card, you might also experience some connectivity problems with your computer as the wireless card refuses to find any network connections and even randomly disconnects. To resolve this problem, you need to refer to the given options below.

Option 1 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like rtwlane.sys Blue Screen error. 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.
• From there, 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.

Option 2 – Try to update or rollback your Network driver

If you have updated the driver software as of late and you suddenly got this BSOD error, you might have to roll back the device driver – in other words, switch back to the previous working version. To do that, follow these steps:

• Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
• From the list of Network Drivers, look for “Realtek <Model> Wireless LAN 802.11n PCI-E NIC” and then right-click on it and select Update Driver.
• Restart your PC and see if it helped in fixing the BSOD error.

Note: If you see any of the following entries under the Network drivers, you might want to download their latest available versions from each one of their manufacturer’s websites.

• Realtek High-Definition (HD) Audio Driver
• Realtek Card Reader Driver
• Realtek Local Area Network (LAN) Driver

On the other hand, if updating the Network driver didn’t help, you can also try to roll back to its previous version.

• Open the Device Manager again and then look for Network Drivers.
• Next, select Realtek <Model> Wireless LAN 802.11n PCI-E NIC from the list of Network Drivers and then double click to open a new mini window.
• After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of the Realtek driver.
• Now restart your computer to successfully apply the changes made.

Option 3 – Try running the System File Checker Scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Netwtw04.sys failed BSOD error. 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

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.

As you know, a Virtual Private Network or VPN is used to access a particular network from another network which is why it is also referred to as a mini-internet. Moreover, you can use it in two ways. One, you can use it to get you access to a closed server which means that you would not be getting access to the internet. Second, you can also use it to access a set of resources while at the same time get access to the internet. However, what if you want to access your resources at home even when you’re away? And what if you want to use the private server at home or at your office even when you’re away? This is where the callout for a VPN server for yourself comes in. And so in this post, you will be guided in how you can create a public VPN server on your Windows 10 computer. Follow each one of the given steps below to get started. Step 1: Find your IP address. This step is rather simple since all you have to do is open Control Panel > Network and Internet > Network and Sharing Center. From there, click on “Local Area Connection” and then click on Details where you’ll see your IP address next to “Autoconfiguration IPv4 Address”. Step 2: Next, set up port forwarding on your router. In this step, you will have to configure port forwarding in your router so that you would be able to connect to the VPN server through a public network like the internet.

• Log in to the Admin Panel of your router. You have to do this since your router will be the gateway for your access to the network.
• After you’re logged in, look for the “Port Forwarding” or “Applications and Gaming” or “NAT/QoS” menu tab and other similar names.
• Now you need to set the port number to 1723 for connections based on Point to Point Tunneling Protocol.
• Then save the configuration and reboot your router.

Step 3: Set up a VPN server on Windows 10.

• In the Cortana search box, type “ncpa.cpl” and click on the related entry from the search results.
• After that, tap the Alt + F keys to bring down the File Menu and then select New Incoming Connection which will open a mini window where you can allow the user accounts on the particular machine to access the VPN connection.
• On the other hand, you can also click the “Add someone” button so that you can add someone else to the whitelist that can access the connection.
• Now click on Next and you’ll see an option to select how people will connect to the network. Check the checkbox for the “Through the Internet” option.
• After that, you will see a page where you have to configure the network. Just select IPv4 and then click on Properties.
• From there, you will be asked to continue some additional settings like letting users access your Local Area Network or how IP addresses will be allocated to these users. Click on OK to save the changes you’ve made.
• Click on Allow Access after you configure the network. And if you want to, you have the option to print this information for future reference or for the client machine.
• Now click on Close to exit the configuration process.

Step 4: Allow the VPN Connections through the firewall In this step, you will have to allow the VPN connections through the firewall.

• In the Cortana search box, type “Allow an app through Windows Firewall” and click on the related search result to open the intended Windows Firewall settings.
• Next, click on Change Settings.
• Then scroll down to check if Routing and Remote Access is Enabled for both the Public and Private networks and click on OK.

Step 5: Set up a VPN connection on Windows 10 Now all that’s left for you to do is to set up a VPN connection on Windows 10.

• Go to Settings > Network and Internet.
• From the list of options given, click on VPN located on the left pane to see the related settings.
• After that, click on the “+” icon to add a VPN connection.
• Next, select Windows Default under VPN Provider and under the Connection Name, input your VPN’s name, and then enter the IP address you got from the VPN service provider under the Server name or address section.
• Now select PPTP under VPN type since it is the most commonly used protocol for VPNs.

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.