Fix “Diskpart failed to clear disk attributes”

If your internet suddenly stops working on your Windows 10 computer and you get an error message saying, “Windows is still setting up the class configuration for this device (Code 56)”, then read on as this post will show you what you can do to resolve it. This kind of issue has something to do with the Network Adapter and you can see this error message in the Properties menu of the corresponding Network Adapter under the Device Manager. This kind of issue could be caused by many things. For one, it could be caused by your VPN connection if you are using one or it could also be due to an outdated driver. Whatever the cause may be, here are some suggestions you have to check out to fix the error.

Option 1 – Check your VPN

When you install a virtual machine or VPN software on your computer, a new setup will be added in the Network Connection settings and helps your computer in using that adapter setting each time the VPN is turned on. Assuming that you are using an Ethernet connection but your system is trying to use another adapter or settings, that’s when issues occur and one of them is the “Windows is still setting up the class configuration for this device” error. To fix it, 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 2 – Try to update or rollback or uninstall the Network Adapter drivers

You might also want to update, roll back or disable your Network drivers to fix the “This operation failed as no adapter is in the state permissible for this operation” error.

• Tap the Win + R keys to launch the Run window and then type in the “devmgmt.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.
• Then right-click on each one of the Network drivers and depending on your preference, you can either select “Update driver”, “Disable device” or “Uninstall device”.
• After that, restart your PC and see if it helped in fixing the netio.sys Blue Screen error.

Option 3 – Try to run the Network Adapter troubleshooter

To run the Network Troubleshooter, refer to these steps:

• Open the Search bar on your computer and type in “troubleshoot” to open the Troubleshoot settings.
• Next, scroll down and select the “Network Adapter” option from the right pane.
• Then click on the Run Troubleshooter” button.
• After that, your computer will check for any possible errors and will pinpoint the root cause of the problem if possible.
• Restart your computer.

Option 4 – Try to reset the Network

You might perform a Network Reset to resolve the problem if none of the three given options above worked. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.

If you receive an error message that says, “Entry point not found, The procedure entry point could not be located in the dynamic link library” on your Windows 10 PC, then you will find this post useful for this will provide you some potential fixes to fix the error. This kind of error can occur if a program fails to locate the DLL library that it needs in order to run. It can also occur if the library is not in the specified directory in the path or if the DLL file has gone missing or has become corrupted. To fix the “The procedure entry point could not be located in the dynamic link library” error, check out the following options given below.

Option 1 – Try to reinstall the program

The first thing you can do to resolve the error is to uninstall the program that throws the error and download its latest version from its official site and then install it again.

Option 2 – Run System File Checker scan

If reinstalling the program didn’t work, you can also try running the System File Checker or SFC scan to fix the error. System File Checker is a command utility built into your computer that helps restore corrupted files and missing files. Refer to the following steps to run it:

• Hit the Win + R keys 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.

 Reboot your computer.

Option 3 – Try checking the details in the Event Viewer

The Event Viewer can also help you resolve the error as it contains detailed information about the error that could help you pinpoint its root cause and resolve it.

Option 4 – Try to re-register the problematic DLL file

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

• Open Command Prompt as admin from the WinX menu.
• Next, type the following commands in the elevated Command Prompt and hit Enter to execute the command. This will re-register the affected DLL file using the Windows operating system tool, regsvr32.exe.
  • exe /[DLL file]
  • exe [DLL file]

Note: Replace “[DLL file]” with the name of the DLL file that was pointed out in the error.

• After you execute the given commands, you should see a message saying, “DllRegisterServer in vbscript.dll succeeded” if the Regsvr32 tool was able to run successfully. After that, try to install the program again and see if it now works.

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

• First, you need to get the new DLL file from another computer with preferably the same file version number.
• After that, you need to boot your PC into Safe Mode and navigate to the paths listed below and then replace the file using a USB drive or other external storage devices.
  • x86: This PC > C:/Windows/System32
  • x64: This PC > C:/Windows/SysWOW64
• Next, type “cmd” in the Cortana search box and right click on Command Prompt, and select “Run as administrator” to open it with administrator privileges.
• Now type the “regsvr32 ntdll.dll” command and hit Enter.
• Restart your PC and check if the error is now fixed.

Option 6– Try to scan your computer using Windows Defender

It is also possible that the DLL file might be infected with malware or virus which could explain why you’re getting the error. Thus, 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.

Error Code 0x80004002 - What is it?

Error Code 0x80004002 is a Windows-based error code that affects Windows 10 and previous operating systems, including Windows XP, Vista, Windows 7, and Windows 8. In most instances, the message box that shows Error Code 0x80004002 pops up as you attempt to install new software or programs on your machine.

Common symptoms include:

• Problems running programs that once worked
• Slow response time of your computer to commands entered with the keyboard or mouse
• Trouble shutting down or starting up your machine
• Error message regarding your registry, updates, or response time.

There are a number of different solutions that you can use to attempt to resolve Error Code 0x80004002. Because there are multiple causes to the issue, some of the methods used to successfully address the problems at hand are fairly simple, while others require advanced knowledge or abilities to complete. If the methods below are not successful in the resolution of the issue or if you aren’t confident in your skills to implement these methods, contact a qualified Windows repair technician to assist you. Once this error message is not rectified, you could be exposing your computer to other error messages, including error code 0x80240020.

Solution

Error Causes

There are many different issues that can contribute to the appearance of Error Code 0x80004002. The most common causes for this particular error message include:

• Errors in registry files
• Missing system files that have accidentally been associated with other programs and deleted
• Viruses or malware that cause corruption in program or system files
• Installations that have failed to complete fully

Further Information and Manual Repair

Due to the number of causes that can contribute to Error Code 0x80004002, there are a number of methods that you can use to attempt to resolve the issues behind the error. While some of these methods are fairly easy to implement, others may require you to use programs like registry cleaners and driver installation wizards, so if you are not comfortable using these kinds of software, contact a certified Windows repair technician to assist you.

Here are the top ways that you can attempt to address Error Code 0x80004002:

Method One:  Run Your Windows Registry Cleaner

Many different registry cleaning tools exist on the Internet, but not all of these are provided by trustworthy sources. Rather than trusting a file from an unknown publisher, you can use the registry cleaning program included in your Windows software package.

Run this tool to complete a scan of your files, discovering which ones may need to be repaired. In most cases, the registry cleaner itself can repair the necessary files and resolve the error.

It is always a good idea to restart your computer after you have run the registry cleaning tool to ensure that your machine can accurately assess the newly repaired files.

Method Two:  Update Your Drivers and Software

In some cases, Error Code 0x80004002 arises when drivers are out of date. If you believe that this is the case, you can check on the status of your various drivers by going into the settings for your operating system and selecting the “Update Drivers” option.

You can also check your system for any necessary updates to your Windows software, which may serve to address the error code.

After you have checked and installed any necessary drivers, make sure to restart your computer to fully apply any changes that the installation process has introduced.

Method Three:  Reinstall Your Windows Software

In some cases, the best way to address the missing or corrupt files that can cause Error Code 0x80004002 is to simply reinstall your copy of Windows. Always make sure to back up your files before reinstalling your software.

Method Four:  Run Your Virus Scan Software

Because Error Code 0x80004002 can also be caused by malware or a virus, you can run your virus scan software to detect and resolve the problem. After doing so, run the registry repair tool to fix any affected files and restart your computer.

Method Five: Use An Automated Tool

If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

When you connect your TV via HDMI cable Windows will recognize it as another monitor and will control the display settings for your HDMI connection. In most cases using it as the extended desktop will work fine, issues will arise when you play video on it. Video playing applications can override Windows settings which can lead to strange results on the screen. Here in this guide, we will tackle with reasons and solutions to this particular issue. Solutions provided are not meant to be followed in the way they are presented but as a silent rule, they go from most common one to most rare so it is advisable to try them in the order presented.

FIXING RESOLUTION ISSUES

The first thing when experiencing resolution issues on your TV connected to a PC is to check TV settings. There is very likely a chance that you will need to manually adjust picture settings on the TV itself using TV controls. On older models of TV, there is an overscan option which can lead to different resolutions and screen sizes. Overscan is a technology that was used in order to help content creators to deliver consistent pictures on different screen sizes and aspect ratios but how technology has advanced and everything including aspect ratio was standardized overscan itself has become a relic of the past. If you are unable to access or see edges of your desktop on the TV screen it is very likely that overscan is the issue. In order to fix this be sure to select HDTV's aspect ratio to fit the screen setting in the picture setting. Sadly finding this option on your TV will be different from manufacturer to manufacturer and even from model to model of the same manufacturer so we can not cover all models but in most cases option is located under picture settings or advanced options. Sometimes you will face even different overscan settings instead of classic ft to screen options, in this case, experiment with the setting until you find one which will work. If you have it, find settings in the user manual of your TV. Luckily you have managed to find the proper option on your TV set and have chosen the right aspect ratio for display. If everything works ok there is no need for the next step but if you experience a different resolution than desired on your TV follow this next guide on how to change the resolution of the TV on your PC.

1. Press the ⊞ Windows and type Change Display Settings. Click on the top result.
2. Once the Display Settings App opens, you’ll see two screens (or more if you’ve got multiple HDMI outputs connected). Make sure you select the right display for the HDMI TV before making any changes. You can do this by clicking on Identify.
3. You’ll see the number from the screenshot above displayed on the monitors for a brief period. Depending on which screen is set to your primary display, make sure you change the settings for the HDMI monitor.
4. Select the HDMI monitor from the available displays.
5. Scroll down until you see the current resolution settings for your HDMI monitor.
6. You can change the resolution settings and test different values that match your HDMI TV’s configuration.
7. Once you change the setting, Windows will apply the new resolution for a limited time and revert if you don’t accept the new setting.
8. Once you’ve found the best resolution for your TV, select Keep Changes to keep the new resolution.

You are all set now, make sure that you have the latest drivers on your system and enjoy using your TV as a second monitor.

Stumbling upon downloader.dll not found error is not pleasant to experience, usually, it means that desired application can not be started. There could be several reasons why this error happens from user mistakes, corrupted files, bad installation, and even bad RAM memory. Whatever the reason might be solutions provided are the same for all and offer a fix to this issue. it is advisable to follow provided solutions from start to finish not skipping any one of them since they are tailored to address the simplest solutions and issues and move toward more complicated ones.

1. Reinstall application

   If you are receiving Downloader.dll not found when trying to run just a single certain application, reinstall the application, there is the possibility that the application has somehow corrupted downloader.dll during the installation process. Reinstalling might fix the problem.

2. Run SFC scan

   SFC scan is the tool meant to scan all files and fix any corrupted ones. To run this tool, open the command prompt in administrator mode by right-clicking on the windows start button and then left-clicking on the command prompt (admin). When you are in command prompt type in SFC /scannow and let the whole process finish.

3. Update device driver

   If previous steps have not provided results, go to device manager and visually check is there a device with an exclamation or other sign next to it, if there is, right-click on it and choose update driver.

If your Microsoft Edge browser encountered a Stop Error that says, “INVALID_POINTER_READ_c0000005 (atidxx64.dll)” in your Windows 10 computer, then this indicates that your Graphics card driver is outdated. According to security experts, Microsoft has already acknowledged the problem and stated that this issue exists with Windows 10 v1809, Windows Server 2019, and Windows Server version 1809. Although there is no direct way to resolve the problem, there are still some workarounds you can try. If you are using a RadeonHD2000 or HD4000 series video card, the update will be blocked for you. Some users also claim to experience performance issues with the lock screen or the ShellExperienceHost. However, if you are using AMD, the problem is that it no longer supports Radeon HD2000 and HD4000 series graphics processing units or GPUs. Even though Microsoft is already working for a way to resolve the problem, here are some alternative solutions you can check out:

Option 1 – Update your Graphics card drivers

• First, boot your computer into Safe Mode.
• After that, 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. From there, look for the Display Adapters and click on them.
• After that, right-click on each entry under the Display Adapters and select the “Uninstall Device” option from the menu.
• Now restart your computer.
• After restarting your computer, go to the Settings app and Check for Updates in the Windows Update section.

Note: You also have the option to go directly to the website of your graphics card manufacturers like NVIDIA, Intel or AMD and go to the section called Drivers then check if there’s a new available update – if there is, download and install it.

Option 2 – Try removing AMD Radeon HD2000 and HD4000 drivers

Although this is not exactly a perfect solution, removing AMD drivers will make the operating system fall back to the default GPU available on your motherboard. You also have the option to completely disable the hardware.

• Tap the Win + X + M keys to open the Device Manager.
• Next, look for your Graphics card drive, and under Display Adapters, right click on them and click Uninstall device or Disable device.
• After that, restart your computer. This will disable the AMD drivers so you won’t be able to find them. It will also release the Windows 10 v1809 update on your computer and in case your operating system tries to prompt you with the “New Device found” message, simply ignore it.

Option 3 – Try to use another browser

You might want to use another browser especially when you already updated your computer and Microsoft Edge still keeps on crashing. You can use Google Chrome, Mozilla Firefox, and other browsers as alternatives until you sort out the problem.

Option 4 – Try to remove the Graphics card physically

You might also want to try removing both AMD Radeon HD2000 and HD4000 as they are very old graphics cards. And since AMD is not going to roll out anything, at least on its own if your motherboard has an onboard GPU, it would be best to get rid of the cards. After that, install the Windows v1809 update and then put them back in. You also have the option to install the driver but just don’t use Microsoft Edge.

What is Error 0xc0000142?

Error 0xc0000142 can occur in any of the Windows versions and usually occurs when an application fails to properly initialize.

This error can be critical for a computer as it signifies that the system is unstable. Error 0xc0000142 can cause slow performance in a PC, system freeze, startup and shutdown issues, blue screen and errors in installation.

Solution

Error Causes

Windows/Application Error 0xc0000142 can occur because of a number of reasons.

When a computer is an overload with data, or when system files get broken or missing, this error can occur and will result in startup and shutdown issues as well as the blue screen. Another reason, and one which is quite common, is improper computer maintenance.

This will cause a PC to perform slow, system freezes, and installation errors. This error displays ‘failed to initialize’ on either a Windows error box or the blue screen of death.

Further Information and Manual Repair

Error 0xc0000142 can occur at any time, but there are many ways to resolve it. For instance:

1) Clean the Registry

A corrupted registry is one of the major reasons why this error occurs. The registry is used by Windows to store information and settings on the computer, which is why it has a large database.

This database contains emails, wallpapers, saved passwords and much more in ‘file path references’. These allow Windows to run the common files in your system. A registry cleaner can fix any errors in the registry database.

2) Malware Scan

Viruses can cause certain applications to not function properly. Hence, download a strong antivirus and run a deep scan on your system and remove any potential infections and spyware.

3) Reinstall Applications

Non-critical applications in a computer are those that are installed by the user. If error 0xc0000142 displays in any of your installed programs, then you should reinstall these programs. Often applications have damaged or corrupted files which can slow them down. To resolve this, follow these steps:

• From Start, click on Control Panel
• Go to Add/Remove Programs and uninstall the programs
• Restart your PC and reinstall the program

The third step is not recommended in case the error is caused by cmd.exe

4) Repair Windows

If the error is still on display despite following the previous steps, then you can repair Windows. This process allows Windows to retain all your data and information by simply replacing the program files and settings with fresh ones. This can stop error 0xc0000142 by allowing the programs access to use necessary files smoothly and effectively.

If you cannot resolve the error in any of these steps, then there is another way to do so if you have a computer that runs the Microsoft Internet Security and Acceleration (ISA) Server 2000. Follow these steps in order to resolve it:

• Make sure that in Program Files and Microsoft ISA Server, a Clients folder exists. The ISA Server service will run on this folder
• Confirm that Administrators and SYSTEM have Full Control assigned in the Program Files/Microsoft ISA Server/Clients folder
• Confirm that Msplat.txt file is in the Clients folder. You can copy this file from other ISA Server computers if it is missing
• If the Clients folder is damaged or is missing, or if you can’t copy the Msplat.tct file from another ISA Server computer, then reinstall the ISA Server 2000

What Is Htmlayout.dll Error?

Htmlayout.dll is a linked library which is also known as HTMLayout. In simple words, it is an embeddable HTML layout and rendering component. htmlayout.dll is generally associated with Avast Internet Security, Bit Defender Internet Security 2011, and other similar programs. If you’re noticing that a continuous popup that reads:-

‘HTMLayout.dll cannot be loaded to properly start GUI. Therefore process cannot continue’, ‘Htmlayout.dll not found’, ‘The file htmlayout.dll is missing’,

and so on, then your system may be exposed to serious privacy and security threats.

Solution

Error Causes

To begin with, DLL files are shared files, and they can and do exist outside the software applications. While these files do provide benefits to software developers, once they are separated, they can only spell trouble. Hence, you start seeing the HTMLayout error, which will most probably occur at system startup, program startup, or when trying to use specific functions in a program. There are a number of reasons why the HTMLayout errors occur, and some of the common ones include:

• The file is missing because it was accidentally deleted from the system.
• The file was damaged by a virus and as a result, your system cannot access it.
• The file was related to the registry and is now corrupt or obsolete.
• The program that was related to the file was not uninstalled properly.
• The file was overwritten by a corrupt or outdated version.
• The spyware or malware deleted the original file and disguised it as the HTMLayout.

Further Information and Manual Repair

While the HTMLayout DLL error may sound like too much trouble, it is rather easy to resolve with a few steps. If you are getting the error because of a specific program or file, then you should reinstall to make sure the error does not pertain. For that, follow these steps:

1. Go to Start and select the Control Panel.
2. Click on the Add/Remove Programs icon and select the programs that show the error on the list.
3. Select Remove/Uninstall to safely remove the program from your system.
4. Restart the system and reinstall the program again.

This is the easy way out if the HTMLayout DLL error is occurring as a result of the file missing. However, there can be cases when the file has been tampered with by virus or registry issues. For that, the safest bet is to download Restoro. Restoro is not just another registry cleaner. Instead, it is a multi-functional PC Fixes that works as an antivirus, registry cleaner, system optimizer, and much more. What’s more interesting about Restoro is that it provides real-time results as opposed to other registry cleaners. In other words, you will actually feel a difference in PC performance and security after installing and using the program. The software is compatible with all Windows versions. So just click here and download Restoro to get rid of HTMLayout error and other issues in your system!

Error Code 0x8007000d - What is it?

Error Code 0x8007000d is a common error code that can be found on the Windows 10 Operating system, although it can also appear in previous versions of the operating system, as well.

Common symptoms include:

• Inability to download new updates.
• Inability to run the Update tool through to completion.

There are four basic ways to try to resolve Error Code 0x8007000d on your Windows machine. Three of these are pretty simple for even the most basic users, while the final method requires some familiarity with running commands in the Command Prompt. If you don’t feel that you have the skill or confidence to complete the steps listed below, it is generally recommended that you get in touch with a qualified computer repair technician that can assist you in error resolution.

Error Causes

The main cause for the appearance of Error Code 0x8007000d on a Windows machine is that one of the files that the Update tool uses to run one or more updates cannot be found or has experienced damage. Fortunately, there are a few things that you can try on your machine that can be used to attempt to resolve the issues at hand.

Further Information and Manual Repair

Three primary methods exist for the resolution of Error Code 0x8007000d on a Windows machine. As mentioned above, two of these methods can usually be accomplished by basic users, while the third requires some degree of familiarity with the tools associated with the Command Prompt. If you don’t feel that you have the knowledge or skill necessary to follow these steps, contact a computer repair technician to aid you.

Here are the best ways to try to resolve Error Code 0x8007000d on your device:

Method One:  Use the Troubleshooting Tool from Windows Update

From the Windows Update tool, you can attempt to run a scan using the Windows Update Troubleshooter, which can try to identify the specific issue that is occurring and to fix it automatically.

Not only will this tool often fix the problem at hand, but it can also help you to avoid other errors that you may have encountered later on in the Update process. This tool should always be your starting point when you encounter an error as you attempt to download or install updates for your Windows machine.

After the tool has been run, restart your computer to apply any changes and then reopen the Update tool to reattempt installation.

Method Two:  Reset Your Computer

In some cases, the missing or corrupted files may be extensive enough that you need to restore your computer to an earlier point. If you create regular backups of your information or have a past version of the software that you can install, this can help you to resolve the issue. Otherwise, you may need to restore your device to its factory settings to resolve the error.

Always make sure to backup your important files and information before you perform a reset of your device, in order to ensure that you are able to return the computer to its original state when you have finished.

Method Three:  Use Command Line Tools to Resolve the Issue

One of the ways that you can try to resolve this particular error code is the use a DISM tool. This is accessed through the Command Prompt. In order to use this method, follow the steps below:

• Step One: Open up the search bar in the Start Menu and type in the words “Command Prompt,” selecting it and choosing to run it as an administrator.
• Step Two: Enter each of the commands below, hitting the “Enter” key when you finish each one:
  • exe /Online /Cleanup-image /Scanhealth
  • exe /Online /Clean-upimage /Restorehealth
  • Exit
• Step Three: Attempt to run the Update program again. In some cases, you may want to restart your computer before you attempt to run the Update tool again.

If you have not been able to resolve the error code using the steps above or if you are unsure of your ability to follow these steps on your own, get in touch with a trusted computer repair professional that is familiar with the Update process and the errors associated with it.

Error Code 0xC004C020 (Code 0xC004C020) – What is it?

Error code 0xC004C020 (Code 0xC004C020) is an error that occurs when you attempt to activate a copy of Windows 7 with a key, but the key has already been activated multiple times. When receiving this error code, it means that you are trying to exceed the number of times that the Windows 7 key is allowed to be activated. Common symptoms include:

• Attempting to install Windows 7 with a key and a dialog box with the code 0xC004C020 is displayed.
• The computer is unable to install Windows 7 with the key.
• Certain features will refrain from working until the correct key has been entered.

Solution

Error Causes

Error Code 0xC004C020 occurs when you are not able to install Windows 7 using a previously purchased key code that has been installed numerous times previously on the same computer.

• You are not able to use your previously used key to install Windows 7.
• You have used the Windows 7 key the maximum number of times allowed.

Error code 0xC004C020 simply means that the Windows 7 code that you are trying to use to install Windows 7 has already been used the maximum number of times allowed, even when installing it on the same computer that it was previously used on. This would indicate that the key is what is known as a volume key- meaning that there is a cap on the number of uses.

Further Information and Manual Repair

Many people encounter this problem when they are doing software development or testing and need to reinstall Windows 7. Some people might also encounter this error code when installing Windows 7 with a key that was used too many times previously. It should be noted that there are several ways to fix this problem, but if nothing is working, you should contact a computer repair technician.

Method One

Activate by phone- the long method.

1. Click the start button, right-click Computer, click Properties, and then click Activate Windows.  This will open Windows Activation.
2. Click on “Show me other ways to activate”.
3. Find and enter the Windows 7 key, then click Next.
4. Click on “Use the automated phone system”. If you are prompted for an administrator password or a confirmation, confirm or type the password now.
5. Select the location nearest to you and then click the Next button.
6. There will be a list of available phone numbers, choose one and call it. There will be an automated system that will guide the activation process.
7. Enter the installation ID when prompted, it will be listed on your computer screen.
8. The phone system will give you a confirmation ID, write this down.
9. Type this confirmation ID into the space that is provided by step 3. This will be in the activation dialogue. Then, click NEXT and follow the instruction.
10. If this is not successful, stay on the line and be transferred to a customer service representative that will assist you.

Method Two

Activate by phone- this is a much simpler method.

1. Click on Start, type: slui.exe 4 into the Search box
2. Press Enter on the keyboard.
3. Pick your country.
4. Choose the Phone Activation option; stay on hold to speak with a customer service representative.

Method Three

Error code 0xC004C020 occurs if you have used your Windows 7 activation key on multiple computers, or multiple times on the same computer. You are not allowed to exceed the uses of the key—you should consider purchasing a new key if this is the case. A Windows 7 key is available for purchase online through the Microsoft website, in the shop section. The new product key must then be activated within 30 days, or it becomes no longer valid. It can be activated online or through the telephone. If it is not activated on time, features will stop working until the new key has been activated. This should be the last resort method, as you should not have to purchase a new Windows 7 key code if it is not necessary. If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.