Additional causes can be trying to upgrade with a generic key, and using Volume License Keys or shared keys from unauthorized sources. In this article, we will discuss different ways to solve this error.

Disconnect Internet Before Updating

Before you start, disconnect from the internet to stop Windows from checking your product key online during the update.

Activate Windows

Fix  Windows Activation Error 0x803fa067 - 79Fix  Windows Activation Error 0x803fa067 - 42Fix  Windows Activation Error 0x803fa067 - 78Fix  Windows Activation Error 0x803fa067 - 99Fix  Windows Activation Error 0x803fa067 - 38