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0xc004d302 Slui.exe 0x2a 0xc004d302




How to Fix Windows Activation Error: 0xC004D302


How to Fix Windows Activation Error: 0xC004D302




If you are trying to activate your Windows operating system, you may encounter an error message that says:


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Error: 0xC004D302 On a computer running Microsoft Windows non-core edition, run 'slui.exe 0x2a 0xC004D302' to display the error text.


This error indicates that there is a problem with the activation process or the license files of your Windows system. It can prevent you from using some features and functions of Windows, and it can also affect the performance and security of your computer. Therefore, it is important to fix this error as soon as possible.


In this article, we will explain what causes this error and how to fix it using different methods. We will also provide some tips on how to prevent this error from happening again in the future.


What causes Windows Activation Error: 0xC004D302?




There are several possible reasons why this error may occur during Windows activation. Some of the common causes are:


  • Corrupt license files (Token.dat): The Token.dat file in Windows stores the activation information and the digital signature of your Windows system. If this file is corrupted or damaged, it can cause activation issues and errors. This can happen due to malware infection, disk errors, power outages, or improper shutdowns.



  • Issues in RSA Machine Keys: The RSA Machine Keys folder contains the certificate keys for Internet Information Services (IIS). If this folder is filled with too many files or has some corrupted files, it can interfere with the activation process and cause errors. This can happen due to software conflicts, registry errors, or malware infection.



  • Using different commands for activation: If you use the command slmgr.vbs /rearm to reset the activation timer of your Windows system, you need to restart your computer before using any other commands for activation. If you try to use commands like /dlv or /dli without restarting your computer, you may get the error 0xC004D302. This is because the /rearm command changes some registry values that need to be updated by restarting your computer.



How to fix Windows Activation Error: 0xC004D302?




Depending on the cause of the error, you can try different methods to fix it. Here are some of the methods that you can use:


Method 1: Run SFC Scan




The System File Checker (SFC) is a built-in tool in Windows that can scan and repair corrupted or missing system files that support the activation process. To run an SFC scan, follow these steps:


  • Click on the Start menu and type CMD.



  • Right-click on Command Prompt and select Run as administrator.



  • Type the following command and press Enter: sfc /scannow.



  • Wait for the scan to complete. It may take some time depending on the size and condition of your system files.



  • Restart your computer and try to activate Windows again.



If the SFC scan finds and fixes any issues with your system files, it may resolve the error 0xC004D302. However, if the SFC scan does not find any issues or cannot fix them, you may need to try another method.


Method 2: Edit Windows Registry




The Windows Registry is a database that stores low-level settings and information for Windows and other applications. If there is an issue with the activation keys or values in the registry, you may need to edit them manually to fix the error. However, editing the registry is risky and can cause serious problems if done incorrectly. Therefore, you should only do this if you are confident and experienced with registry editing. You should also back up your registry before making any changes. To edit the Windows registry, follow these steps:


  • Click on the Start menu and type Registry.



  • Open the Registry Editor application.



  • Navigate to the following location: HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\SoftwareProtectionPlatform.



  • Right-click on the SkipRearm value and select Modify.



  • Change the value data from 0 to 1 and click OK.



  • Close the Registry Editor and restart your computer.



  • Open Command Prompt as administrator and type the following command: slmgr.vbs /rearm.



  • Restart your computer again and try to activate Windows.



This method may fix the error 0xC004D302 by resetting the activation timer and allowing you to use other commands for activation. However, if this method does not work or causes more problems, you may need to restore your registry to its previous state or try another method.


Method 3: Delete RSA Machine Keys




If the RSA Machine Keys folder is filled with too many files or has some corrupted files, it can cause activation errors. To delete the RSA Machine Keys folder, follow these steps:


  • Open File Explorer and navigate to the following location: C:\\ProgramData\\Microsoft\\Crypto\\RSA\\MachineKeys.



  • Select all the files in the folder and press Delete. You may need to provide administrative permission to delete the files.



  • Restart your computer and try to activate Windows again.



This method may fix the error 0xC004D302 by clearing the certificate keys that interfere with the activation process. However, if this method does not work or causes more problems, you may need to restore the RSA Machine Keys folder from a backup or try another method.


How to prevent Windows Activation Error: 0xC004D302?




To prevent this error from happening again in the future, you should follow some best practices for Windows activation. Here are some tips that you can follow:


  • Keep your Windows system updated: Windows updates can provide bug fixes, security patches, and performance improvements for your Windows system. They can also prevent activation errors by ensuring that your system files and license files are up to date and compatible. Therefore, you should always check for and install Windows updates regularly.



  • Avoid using illegal or pirated copies of Windows: If you use an illegal or pirated copy of Windows, you may encounter activation errors and other problems. You may also expose your computer to malware, viruses, and hackers. Therefore, you should always use a genuine and legal copy of Windows that has a valid product key and license.



  • Scan your computer for malware and viruses: Malware and viruses can damage or delete your system files and license files, causing activation errors and other issues. They can also compromise your personal data and security. Therefore, you should always scan your computer for malware and viruses using a reliable antivirus program.



  • Avoid using third-party tools or commands for activation: If you use third-party tools or commands for activation, you may cause activation errors or invalidate your license. You may also violate the terms and conditions of Microsoft. Therefore, you should always use the official tools or commands for activation that are provided by Microsoft.



Conclusion




In this article, we have explained what causes Windows Activation Error: 0xC004D302 and how to fix it using different methods. We have also provided some tips on how to prevent this error from happening again in the future. We hope that this article has helped you resolve this error and activate your Windows system successfully.


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