WDS Error "A component of the operating system has expired"

Hello,

I have a WDS (MDT) server which does not work anymore, I cannot start a network boot as I always get the following message:

"A component of the operating system has expired"

Errorcode: 0xc0000605

I think the problem is a result of some kind of Windows 10 Preview image, but on the MDT I do net see a Preview only Windwos 10 with Build# 10240, which should be the released buildnumber.

I also updated the ADK and WDK.

Can someone please point me in the right direction to solving the problem?

Thanks in advance

Paul