Windows 10: How to get rid of the request to save the work on shutdown

Take a look at this screenshot, please:

A similar request is coming every time I try to shutdown the windows 10. I have already tried to set the AutoEndTasks in RegEdit HKEY_CURRENT_USERControl PanelDesktop to "1" as well as changed HungAppTimeout, WaitToKillAppTimeout, and WaitToKillServiceTimeout. That has not helped at all !

I have not found any suspicious App that could cause such a behavior ... Do you guys have had a similar problem, could you get a rid of it?