First thanks for all your work on this, I like the process and the amount of control it gives us over the upgrade. I implemented everything a month ago when I was running SCCM 1607 and after I upgraded to 1709 I'm experiencing an extra prompt before the HTA. See below. If the user closes this the HTA is never displayed, circumventing the deferrals. I see someone had this problem before you mentioned changing client settings. (See Page 5) What settings were changed to stop this prompt?
I have this advertised as required, and this prompt is pops-up automatically, i'm not invoking it from the software center. Alos I do not have any custom user notifications set on the TS.
Thanks!
Mark