How to Prevent Windows from Opening Excel in Startup ?

[wiredlife]

In quest for early release, Microsoft started following Google's Software Engineering Policy of having no SDETs. In this process, Microsoft has been shipping untested products which cause difficulties. For example, Windows 10 Professional version opens up more thna a dozen EXCEL blank files on startup, even though EXCEL Program is not in the startup. It is a result of some other DLL calling the program.

The only solution to this is

Go to Settings>Accounts>Sign-in options

Scroll down until you find Privacy, under it, turn off Use my sign-in info to automatically finish setting up my device after an update or restart.

Reference: https://social.technet.microsoft.com/Forums/office/en-US/6f623bde-435b-44ba-997c-c0766c522a37/how-to-stop-ms-word-opening-automatically-at-the-startup-of-computer?forum=Office2016ITPro