There are many activation error codes that appear on the newly installed Windows 10 computer or laptop. When the activation troubleshooter fails to resolve the issues, it’s time you should fix it manually. Below listed are three most Windows 10 activation problems along with their complete fixes.

1.Windows 10 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.

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. In case, you don’t own a product key, click “Go to Microsoft Store“. Here, follow the simple instructions to purchase a Windows 10 digital license.

2. 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.

How to Fix: The solution is simple, just enter a genuine product key which is for the edition and version of the Operating System present in your computer. If Windows installation happens on a device which is linked to a “Key Management Service” server (viz. KMS), get in touch with the organization’s support.

3. Windows 10 Activation Error 0xC004FC03

You may encounter this stop code when that system is not able to access the internet. Moreover, it also happens when the firewall settings stop Windows to complete the online activation process.

How to Fix: As the error is related to network issues, try to reconnect to the network, run the Network Troubleshooter. And make sure that the firewall on your system is not blocking Windows 10 from activating. If this doesn’t solve the problem, try activating Windows 10 by phone.