Windows Setup in Continuous Reboot Loop on Windows 10 Fix

If you are running a System File Checker scan but got an error message instead that says, “There is a system repair pending which requires reboot to complete, Restart Windows and run SFC again”, worry not for this post will walk you through how you can fix the problem. This kind of error can be addressed and fixed with several potential fixes which will be provided in this post. You can try to restart your computer and run a System File Checker scan again or delete the pending .xml file or use the “revertpendingactions” parameter for the DISM tool. For more information, refer to each one of the options given below.

Option 1 – Try restarting your computer and run the SFC again

The first thing you can do to fix the problem is to restart your computer and let the pending process be completed. After your computer restarted, try to run System File Checker again and see if the error is now fixed or not. If not, refer to the other options below.

Option 2 – Try deleting the pending .xml file

The next thing you can do to fix the problem is to delete the pending .xml file. How? All you have to do is navigate to this location at CWindowsWinSxS and from there, look for a pending .xml file and rename it or delete it. This will get rid of any pending tasks and will build a fresh new check.

Option 3 – Try to use the “revertpendingactions” parameter for the DISM tool

If the two options given above didn’t work, you can try using the revertpendingactions parameter for the DISM tool. If you’re not able to boot into Windows, then run Command Prompt from the Recovery Console and execute the given command below.

dism.exe /image:C: /cleanup-image /revertpendingactions

After you execute the command, restart your computer and try to run System File Checker again and see if it has fixed the problem or not.

If you receive an error message saying, “The proxy server is refusing connections” while trying to open a website on your Google Chrome or Mozilla Firefox browser in Windows 10, then read on as this post will guide you in fixing this error. This kind of error occurs when you have a wrong or dead proxy configuration or when you are using some VPN service. However, this kind of error could also mean that your computer might be infected by malware which caused some changes in the internal settings. Whatever triggered the error, here are some suggestions that could help in fixing it.

Option 1 – Check the proxy settings in your browser

Like other browsers, Firefox allows users to set up proxy in several ways. However, if you’ve made any changes recently which might have caused the error, the first thing you can do is to check the proxy settings in your Firefox browser. Follow the steps below to do so.

• • Open the browser and go to Menu and then click Options.
  • After that, go to the General tab and scroll down and click the Settings button under Network Settings.

• From there, make sure that the Use system proxy settings option is set. If not, you have to enable No proxy and then save the changes made.
• Now check if the “The proxy server is refusing connections” error is fixed or not.

Note: If you want to use a proxy in Firefox, you have to select the Manual proxy configuration and set it up properly. And if your network has a proxy setting and you want to grab that, you have to opt for the Auto-detect proxy settings for this network option.

Option 2 – Try disabling the proxy server for your LAN

If your PC was just attacked by some adware or malware as of late, it is possible that it has changed the network settings in the system and might display spam advertisements. Thus, you have to disable the proxy server for your LAN. To do that, refer to these steps:

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 3 – Try disabling the manual proxy setup from Settings

In case you miss it, there is actually an option in the Settings panel that you can use to set up a proxy in your Windows 10 computer. So if you encounter the “The proxy server is refusing connections” error, you should disable manual proxy for the meantime and check if it fixed the error or not.

• Tap the Win + I keys to open the Windows Settings.
• Then go to Network & Internet > Proxy.
• And on your right-hand side, ensure that the Automatically detect settings are enabled and that the Use a proxy server option under the Manual proxy setup is disabled.
• Now try to open any website again and see if the problem’s fixed.

Option 4 – Check your VPN

If you are using a VPN application, there are times when it causes some issues like this error. If that’s the case, you can try to disable your VPN temporarily and see if the error is resolved or not and if turns out that your VPN is the culprit, you have to uninstall it and install a new one or its latest version. To uninstall it, follow the steps below.

• Tap the Win + R keys to open the Run dialog box
• Then type “appwiz.cpl” in the field and hit Enter to open the Programs and Features in Control Panel.
• From there, look for the VPN service you are using, select it and then click on Uninstall to remove it.
• After that, restart your computer and try to install the latest version of the program again. It should work now. If not, proceed to the next available option below.

Option 5 – Clear your browser’s internet cache

You actually have the option to Hard Refresh in order to clear the cache of your browser either pressing key combination Ctrl +F5.

Option 6 – Try scanning your computer using Windows Defender

As mentioned, the “The proxy server is refusing connections” might be caused by some malware in the system and so to eliminate the malware, 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.

A general rule of thumb, which is followed by most users, is to download the specific missing DLL file and place it within the software’s installation directory. However, this can be harmful to your system as hackers often upload popular malicious DLL files to target systems. Thus, you should avoid downloading DLLs from the internet. And follow these steps to fix the DLL error:

• Restart your computer
• System restore to an earlier state
• Run a malware/virus scan
• Update all the hardware drivers
• Running SFC /scannow command in command prompt
• Then do as the error suggests, reinstall the program if it’s feasible. Game files can take several hours to install and therefore, reinstallation can be a cumbersome job. Also, frustrating if the error appears after reinstallation.
• Update device drivers manually, such as graphics drivers, DirectX software if you see DLL missing error while running game

If you got encounter an error message saying, “Error opening file for writing” while running a setup file to install some program on your computer, read on as this post will give you some suggestions on how you can fix it. You can encounter this error when running a setup file for installing a program like GlassWire, Notepad++, VLC, Steam, OBS, Mod Organizer, WinpCap, NSIS, FileZilla, BSPlayer, Kodi, Wireshark, rtcore64, qt5core.dll, MSI Afterburner, GWCtlSrv.exe, npf.sys, vcredist_86 and many more. And so when this error pops up while you run a setup file, refer to the steps given below which might help resolve the problem. Step 1: First, you have to make sure that there is no other installation in progress as multiple installations can most likely cause this error to show up. You can restart your computer and try to run the setup file again. Step 2: If you still got the error even after your restart your computer, click on Retry to try again and if it does nothing, click Abort to terminate the installation. After that, go to the folder where you’ve placed the setup file and then delete it. Step 3: Make sure that you have enough disk space on your computer. You can use the Windows 10 Storage Sense feature which can clean all the temporary files from your computer and help you save storage space. To use Storage Sense, follow the steps below.

• Open Setting > System > Storage from the WinX Menu.
• From there, you will see a list of all the local and connected storage devices along with the details on the free space.
• Now make sure that the Storage Sense feature is turned On then go find a link that says “Free Up Space” and click it to open.
• After that, a screen which is the built-in program in Windows 10 will appear and will scan your computer for the following junk files so you can free up disk space:
• Windows Upgrade Log Files
• The system created Windows Error Reporting Files
• Thumbnails
• Temporary Internet Files
• Previous Windows Installation Files
• Delivery Optimisation Files
• DirectX Shader Cache

Note: Once you’re done freeing up space on your drive, try to run the setup file again. Step 4: If freeing up space didn’t help, you can just delete the setup file and download another one from the official homepage of the program. From there download the setup file and place it in a different location. After that, run the setup file once again. Step 5: Make sure that you have downloaded the correct setup file according to your operating system, i.e. x64 or x86. Step 6: Restart your computer once more and make sure that you sign in as administrator. After that, right-click on the setup file and click “Run as administrator”. If it still didn’t help, you might want to take ownership of the folder where you saved the setup file. How? Follow the steps below but before you do that, you have to create a System Restore Point first, once that’s done, proceed.

• First, locate the concerned folder and right-click on it 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.

Something we are used to doing in a certain way inside Windows 10 is slightly changed in Windows 11. One of those things is how you open task manager, well kind of. Option to right-click on the taskbar and launch task manager is gone but do not worry there are other same and simple ways you can launch it.

1. Press CTRL + SHIFT + ESC or CTRL + ALT + DEL
2. Right-click on the START button
3. Type task manager in start search on top in the start menu
4. Type taskmgr in command prompt
5. Press ⊞ WINDOWS + R to open run dialog and type in taskmgr

And that’s it, now depending on your situation, you might use different methods to evoke task manager.

It is a fact that Blue Screen of Death errors can give you a headache for you will have a hard time fixing it as it is one of the most difficult errors you can encounter on your Windows computer. One of these BSOD errors is the UNEXPECTED KERNEL MODE TRAP error. If you receive this kind of error then it means that the operating system was not able to catch a trap or an exception generated by the CPU. This BSOD error has an error code 0x00000007F and indicates that the Intel CPU generated a trap that the kernel failed to catch. One of the most likely causes is hardware failure due to faulty memory. Aside from this cause, you also have to track down other probable causes for this problem like corrupted system files, incompatible drivers or programs, faulty hardware, and even dusty components, and so on. To fix the UNEXPECTED KERNEL MODE TRAP BSOD error, here are some suggestions that might help.

Option 1 – Uninstall the programs you installed recently

Chances are, some programs that you just installed might be the one that’s causing the BSOD error. Thus, you need to uninstall the program to resolve the problem.

• In the search box, type in “control” and then click on Control Panel (desktop app) among the search results.
• After that, select Programs and Features from the list which will give you a list of all the programs installed on your computer.
• From there, look for the concerned program and select it and then uninstall it.

Note: If you have downloaded the app from the Windows Store, you can simply right-click on it from the application list and then uninstall it. In addition, you might also want to check the hardware components of your computer that might not support the operating system itself. You can disconnect all the external devices like USB drives, scanners, printers, etc., and then reboot your PC. After that, add the devices again one after the other and check if the BSOD error is now fixed or not. Moreover, you can also perform a clean boot to make things easier for you.

• 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.)

Option 2 – Update your device drivers

• Tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. Look for the device driver you and then select either “Update driver” or “Uninstall device”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• If you have chosen to uninstall the driver, follow the screen options to complete the process and then restart your PC.
• Connect the device and Scan for hardware changes – you can see this option under Device Manager > Action.

Option 3 – Use the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like UNEXPECTED KERNEL MODE TRAP. 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 4 – Run the Windows Memory Diagnostic tool

You can use the Memory Diagnostic tool in Windows to check RAM. Before you use this tool, make sure you save all your important work.

• Tap the Win + R keys to open the Run dialog box.
• Next, type in “mdsched.exe” in the field and hit Enter to open Memory Diagnostic.
• After that, the Windows Memory Diagnostic will give out two options such as:

1. Restart now and check for problems (recommended)
2. Check for problems the next time I start my computer

• Select any of the given options. After that, your computer will restart and check for memory-based issues upon the restart. If there are any issues, it will automatically them.

Option 5 – Disable Memory caching in the BIOS

You can also disable memory caching in the BIOS to fix the UNEXPECTED KERNEL MODE TRAP error.

• Open the BIOS Setup screen.
• Next, go to Advanced > Cache Memory and then disable it.
• Tap the F10 key to save the changes made and restart your computer.

Option 6 – Run System File Checker

• Tap Win + R to launch Run.
• Type in cmd in the field and tap Enter.
• After opening Command Prompt, type in sfc /scannow
• Restart your computer once the scan is completed.

Option 7 – Clean your hardware components for dust

Cleaning your computer’s hardware components for dust might also help in resolving the UNEXPECTED KERNEL MODE TRAP error. Make sure to use a soft cloth in cleaning the hardware as well as a small blower. Moreover, ensure that you do not damage any parts with moisture or cause harm to any circuits while you’re at it.

If you encounter a blank page with an error message saying, “Origin Error” when you try to load a webpage, then this post will surely help you resolve this error. As you can see, this error is a very uncommon one and it is not about the popular game known as Origin where all you have to do is reinstall the client. Although this error message is a very uncommon one, you will see a blank page with a message saying, “Origin Error” when you attempt to load a webpage. To fix this error, this post will provide you some potential fixes that might help. Follow the fixes given below carefully and see which one fixes the problem.

Option 1 – Use Ctrl + F5 keys to clear browser cache

The first thing you can try is to “Hard Refresh” to clear the cache of your browsers. You can do that by using the Ctrl + F5 keys on your keyboard. On the other hand, you can also clear the cache manually for Chrome, Edge, and Firefox.

Option 2 – Remove the Proxy

You might also want to try removing the Proxy as it could also help you in fixing the Origin error. Here’s how you can do it:

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 3 – Try to flush the DNS, reset Winsock and the TCP/IP

You might also want to flush the DNS and reset Winsock as well as reset TCP/IP as it could help in fixing the Origin error. To do so, refer to these steps:

• Click the Start button and type in “command prompt” in the field.
• From the search results that appear, right-click on Command Prompt and select the “Run as administrator” option.
• After opening Command Prompt, you have to type each one of the commands listed below. Just make sure that after you type each command, you hit Enter
  • ipconfig /release
  • ipconfig /all
  • ipconfig /flushdns
  • ipconfig /renew
  • netsh int ip set dns
  • netsh winsock reset

After you key in the commands listed above, the DNS cache will be flushed and the Winsock, as well as the TCP/IP, will reset.

• Now restart your computer and open Google Chrome then try opening the website you were trying to open earlier.

Option 4 – Try using Google Public DNS

You might want to try changing your current DNS to the Google Public DNS. All you have to do is change the DNS settings explicitly on your operating system by using the DNS IP addresses. Here’s are the steps to do that:

• The first thing you have to do is right-click on the network icon in the Taskbar and select Network and Sharing Center.
• Next, click on the “Change Adapter Settings” option.
• After that, search for the network connection that you are using to connect to the internet. Note that the option might be “Wireless Connection” or “Local Area Connection”.
• Right-click on your network connection and click on Properties.
• Then select the new window to choose the “Internet Protocol 4 (TCP/IPv4)” option.
• After that, click on the Properties button and click the checkbox in the new window for the option “Use the following DNS server addresses”.
• Type in “8.8.8” and “8.8.4.4” and click OK and exit.

SD memory cards have surfaced as standard cards for digital cameras and microSD as phone standard memory cards. Most people have and use at least one daily, so naturally copying files and even formatting SD cards is a natural thing to do, but what if you cannot copy files or format SD cards? Fear not because we had this issue and tried several things in order to overcome the problem and after some time here is a list of what can you do if you are facing this exact issue. The list is written from most simple solutions to more complex ones and it is advisable to follow it as presented. That being said, let's dive into solving the problem.

1. Remove Write Protection on SD card

First and in my experience the most usual thing preventing deleting, copying files, and formating SD card is due to write protection. Take an SD card out of the laptop, camera, or card reader and visually inspect it. On side of almost every SD card, there is a hardware lock switch and mark where it needs to be positioned in order to be locked. Even if the switch is positioned on unlocked state, switch it to locked and then back to unlocked. Sometimes this easy moving of switch can resolve some contact issues and the card will start working normally. Another type of lock that could be turned ON is a software one. If for any kind of reason data protection has been turned ON, you will need to turn it off in order to be able to format an SD card. In order to do this follow this guide:

1. Press ⊞ WINDOWS + R to open the Run dialog
2. In run dialog type in diskpart and press ENTER
3. Once diskpart is opened in command prompt type in: list disk and press ENTER
4. Locate your SD card and type in select disk x, where x is disk number followed by ENTER
5. After the SD card is selected type in: attributes disk clear read-only and press ENTER

This process will clear the software lock on the SD card, after following this method try to format the card again, if the problem still exists go to the next solution.

2. Format SD card using Command prompt

Command prompt is a great tool and can perform some commands that are not been able to be completed using file explorer or another tool inside Windows.

1. In the taskbar search box, search for cmd and select the Command prompt
2. On the right part select run as administrator
3. If needed click on YES on UAC prompt
4. Inside command prompt type in diskpart and press ENTER
5. type in list disk followed by ENTER
6. Select your SD card by locating its number in the list and typing select disk X, where is X SD cards number in list and press ENTER
7. Once SD card is selected type in format fs=ntfs quick and press ENTER

This should format SD card but if for reason even this step is provided as unproductive, go to the next solution.

3. Format your card with the Disk Management tool

1. Go into the taskbar and search for Disk Management and open it
2. Select SD card partition that you wish to format
3. Right-click on the partition and select format
4. After the format is done, enter the volume label, file system, and allocation unit size. Confirm with OK
5. Press OK again to confirm the formatting process.

If you have not managed to format your SD card even with this method go to the next solution.

4. Repartition card with Disk part

If all previous solutions have failed there is a chance that the SD card has bad sectors on it. If this is the case that we will need to partition cards in order to isolate bad sectors and use healthy ones.

1. Press ⊞ WINDOWS + R to open the Run dialog
2. In run dialog type in diskpart and press ENTER
3. Once diskpart is opened in command prompt type in: list disk and press ENTER
4. Locate your SD card and type in select disk x, where x is disk number followed by ENTER
5. Type in Clean and press ENTER
6. Type in Create partition primary and press ENTER
7. To select a new partition type select partition 1 followed by ENTER
8. Make partition active by typing active and pressing ENTER
9. Format the drive by typing format fs=ntfs label=SDCard quick followed with ENTER
10. Assign a letter to drive by typing assign letter=h followed with ENTER
11. Type exit to close Command prompt followed again by ENTER and open File Explorer to check if the drive is active

5. Try a dedicated SD card formating fool

If anything failed so far, one last thing you could do is to download and try a dedicated SD card formatting tool. One that I would recommend is SD Memory Card Formatter, which is free software make specifically for formatting SD memory cards.

This post will guide you in fixing the error 0x80070103 when installing Windows Update. According to users who encountered this problem, Windows Update (WU) fails to install several different updates. This kind of Windows Update error is can mostly be seen in the Windows Update screen inside the update reports although it is also known to occur when a user attempts to install a peripheral driver – only if the Windows Update offers to update the driver through a prompt and when you click Yes. There are several possible causes for this error, it could be that Windows Update is trying to install a particular driver for the second time already which happens when it gets confused by an additional piece of identical hardware like the graphics adapter. Aside from that, the Windows Update might have already installed the driver which is known to occur with unsuitable versions of the already installed driver. In addition, the error could also be due to a third-party program interference like a security program or a utility program that is using the same driver and conflicts with the Windows Update. Here are some suggestions that might help in fixing the Windows Update error 0x80070103.

Option 1 – Install the updates in a Clean Boot State

You might want to try putting your computer in a Clean Boot state and then install Windows Updates again without any trouble. During this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” check box.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• After that, try to install the Windows Updates or upgrade again.

Option 2 – Try installing the failing driver without using Windows Update

If installing the updates in a clean boot state didn’t help, you can try a manual approach to yield much better results using the Device Manager or by downloading the driver from the manufacturer’s website manually.

• Tap the Win + R keys to launch Run.
• Type in msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. Look for the device driver you and then select either “Update driver” or “Uninstall device”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• If you have chosen to uninstall the driver, follow the screen options to complete the process and then restart your PC.

Note: You also have the option to go directly to the website of your device driver manufacturer and go to the section called Drivers then check if there’s a new available update – if there is, download and install it.

Option 3 – Try to run the Windows Update Troubleshooter

You might also want to run the built-in Windows Update Troubleshooter in Windows that could help you in resolving the Windows Update error 0x80070103. All you have to do is go to Settings > Update& security > Troubleshoot > Windows Update. From there, click on the Run the troubleshooter button and follow the next one-screen instructions that appear. After that, restart your computer and check if the error is now fixed or not by trying to install the update once again.

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.