Tag Archives: Windows Activation Error Code 0xc004c003

How to fix Windows Activation Error 0xc004c003

To upgrade your older version of Windows to the newer one you use the Windows update service. But the most important thing is that to activate a newer version of Windows you should have the valid older version installed on your computer having the product key. If you don’t have the product key of the older version, you may get Windows activation error 0xc004c003. The error code mainly comes to you when you upgrade your Windows 7 or Windows 8.1 to the Windows 10. This error may stop you to activate the newer version. So it is very important to fix this issue very soon. You can use some manual methods or you can also use Advanced System Repair tool to fix the issue automatically. Continue reading “How to fix Windows Activation Error 0xc004c003” »