Windows Activation after image pull

Hi, we have a number of Wuse 5060 thin clients.

We have one setup as we want, we ran Build_Master and then pulled the image using WDM.

We push the image out to other thin clients, and it works great.

Although this process breaks the Windows Activation and says it needs a valid key, on the device we pulled the image from and the devices we pushed the image to.

How do we stop this from occurring?

All of the thin clients are activated before we push the image to it.

Thanks