I faced the issue that the “Apply Operating System” failed. I wanted to install the OS with the original MS sources, so I haven’t created a new.wim file. When I was testing it, the Task Sequence failed and the following error appeared in the smsts.log file:
The error occurding because the Folder I pointed the Operating System Installer to, only contained the install.wim file. I thought that’s all that is needed, but in fact the full Content of the OS cd is needed. The error is gone after I’ve copied the full Content and re-distributed the OS Install to the DP.