When you login to a computer and Open any Microsoft office product, you will get a pop up of sign in into cloud, as this annoys when it ask each time to open a office application.
How to disable cloud sign in?
Close all your Microsoft applications and Open the registry
Start > Run > regedit then navigate
Right-click on Common folder :Go to New > Key
Name it as “SignIn” (without the quotes)
Right-click on SignIn folder
Go to New > DWORD (32-bit) VALUE
Name it “SignInOptions” (without the quotes)
Set value to 3
Exit the registry
Now when you open office application, you will no more see “Sign in” button in the top bar