Having just built a new PC with windows 10 pro, I ran across something that I was not aware of that could cause problems for imaging done with automation like SGP.
They have eliminated the option to “download and notify” before installing updates. There are some time limitation options where you can limit when restarts happens but you can’t have it ask before doing so as was the case with previous versions. If things are unattended, it is quite possible, depending on how you have things set and when you are imaging, for it to do a restart that ruins a session.
However, it is still possible to get it to behave like the older versions and download updates but only install after asking. The catch is that you need to set this in the group policy editor - it is not in the main update settings area as before. Also, this option is only available in pro versions, not in home.
If there is a workaround or this information is not correct, please let me (and others) know.
I will say that generally I have found 10 to be OK and SGP and PhD2 have run very well so far.