Win10 RebootBlocker 1.1
revent automatic reboot after installing Windows-Upates. This tool will install a Windows-Service that updates the 'active hours' in the background, so that Windows will not reboot while you are working.
The german computer magazin c't writes in editon 03/2017 as of 01-21-2017:
The 'RebootBlocker' written by Ulrich Decker is suitable to get the unwanted reboots under control. The setup installs a windows-service, that will update the 'active hours' every hour, so windows will never be allowed to reboot. We don't know yet any other working solution.