Common Windows 10 Activation Error Codes and their Fixes - - Windows Tips and Tricks with Geek

Thursday, July 22, 2021

Common Windows 10 Activation Error Codes and their Fixes


1: Activation Error 0xC004FC03


The Windows 10 error code 0xc004fc03, appears when the users to fail to activate their Windows OS due to networking problem.

How to Fix: As the error is related to network issues, so to fix the activation error 0xc004fc03try to reconnect to the network, run the Network Troubleshooter, turn off the Windows Firewall. 

2: Activation Error Code 0xC004C008

The error code 0xC004C008 is caused due to an activation server as the product key has exceeded it’s unlocked limit or might have used on many PCs/laptops.

How to Fix: To fix it you can simply run the Windows Activation troubleshooter, this worked for many users. But if still the activation error 0xC004C008 appears the simply contact Microsoft by dialing the number “18009365700” and explain the error message you are getting.

3: Activation Error 0xC004C020


Windows 10 activation error appears while trying to activate the copy of Windows 10 with a license key. The error is very irritating because Windows 10 reports Windows is not Activated.

How to Fix: In order to fix the activation error code 0xC004C020 run the Windows activation troubleshooter. To run it choose Start > Settings > Update & Security > Activation, > choose Troubleshoot.

4: Activation Error 0x8007007B

The activation error 0x8007007b appears while trying to use volume licensed media for installing Windows. And the error message appears “The filename, directory name or volume label syntax is incorrect.”

How to Fix: To fix the error you need to carry out the certain possible fixes like enter an exact product key that matches the edition of Windows on your device. Or else carry out the below-given steps:

Open a command prompt as admin > type “slui 3” > new dialog box will appear here enter the windows product key > restart your system. Check if the windows will be activated.

5: Windows Error code 0xC004E003

Users are getting the error message “The Software Licensing Service reported that the license evaluation failed. (Error code: 0xC004E003)” after installing the third-party software.  It happens because the party tool can change some system files.

How to Fix: In order to fix the error, you need to restore the system files. The resetting of the system may remove all the installed software and hence the error code 0xC004E003 is fixed.

6: Error 0x80004005- ‘Unspecified Error’

activation error 0x80004005

The error may appear if the file required by Windows Product Activation (WPA) is damaged or goes missing. However, many users are also getting the error message “(The copy of Windows 10 is not a legitimate one or has not been activated correctly).

How to Fix: In order to fix this issue first of all click on the Start button and then choose Settings ->Update & security  -> Activation, and then choose Troubleshoot. This will run the Activation troubleshooter.

7: Activation Error Code 0xC004C4AE

This error appears during the activation process and the users are getting the error message “Genuine Validation detected tampered Windows binaries. Error code: 0xC004C4AE”. And to fix it follow the fixes given below.

How to Fix: Check if you are using third party application to add a display language, this is not supported by Windows and you start getting the error. To fix it simply restore your PC to earlier restore point to remove the recent changes made to the Windows system.

8: Windows 10 Activation Error 0xC004F034

This error message shows that the product key entered by the user is invalid or a product key related to any other version of Windows operating system. The error appears because the servers were overloaded, so it is better to wait until the servers are available.

How to Fix: If a Windows system is installed on a device that linked to a Key Management Service (KMS) server then kindly contact your organization’s support person. Or else disable the antivirus, firewall, and VPN, you can also contact the Microsoft support center, and discuss the error.

9: Activation Error 0x803f7001


Users are encountering the error message because of Activation server unable to find a valid Windows license for your PC or laptop. Follow the fixes given below to get rid of the error

How To Fix: In order to get rid of 0x803f7001 error, you should provide a valid product key to activate Windows. You will find the 25-character product key in the confirmation email sent by Microsoft (after buying). You may also see the product key on the packaging that came with your PC, or on the Certificate of Authenticity (COA) attached to the back or bottom of your PC/laptop.

After finding a valid product key, apply the below-given step to activate:

  • Click on the Start button-> select Settings ->Update & security -> Activation.
  • Choose Change product key, and then enter the 25-character product key.

10: Windows 10 Activation Error 0xC004F078

Windows error 0xC004F078

The error code 0xC004F078 appears if the KMS is not reachable by the client computer or if the key used in SLSetAuthenticationData function call is invalid. And also the error code appears on the systems that are upgraded to Windows 10 from earlier Windows 7 or 8.1.

How to Fix: You can fix the error simply by running the Windows Activation troubleshooter and also make sure you are using correct key for your Windows copy type.

11: Windows 10 Activation Error 0x803FA071

Windows 10 Activation 0x803FA071

The error 0x803FA071 appears in the form of error message user entering the used product key

How to Fix: To get rid of the error simply purchase a product key for each one of your systems to activate Windows on them.

12: Activation Error 0x803fa067

This is the last activation error in our list and is commonly faced by the Windows 10 users. This occurs due to the false Windows copy or the previously installed update that altered the system files and causes issue in the upgrade process.

How to Fix: The error appears when you upgrade Windows 10 Home to Windows 10 Professional by using a generic key. And to fix this generic error you have to buy a new digital license as there is no other fix to deal with the error, unlike other activation errors.

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