Hello everyone. Recently, I have been plagued by my computer being forced to upgrade to windows 10 version 1709. I want to stay on the 1607 version. Killing "Windows10UpgraderApp.exe" works when I am at the PC, but when away and left on, it will upgrade to 1709 without hesitation. I have been trawling around in event logs and task manager, and that is where I found a reference to a program called UpdateAssistant.exe in C:\Windows\UpdateAssistant. In explorer, there are two executables in the folder, as well as Task Scheduler tasks in their xml format. From these files, it is revealed that the tasks that run the windows 10 updater are located in Task Scheduler Library\Microsoft\Windows\UpdateOrchestrator\. There are three tasks - UpdateAssistant, UpdateAssistantCalendarRun and UpdateAssistantWakeupRun. Disable all three of them (right click + disable). Looking at the triggers of the tasks, they are set to run UpdateAssistant.exe at pretty much any time possible - At logon, on idle, on unlock and lock, and at system start up as well as when an event is logged. Since I have disabled these, I have not been pestered with Windows 10 upgrades. I hope this solves your problem as well as it did mine.