Method 1: You can use the Registry Editor to remove Office Sign In Option from Office 2016.
Here are the steps to follow:
1. On your computer, notebook or laptop go to your Start Screen.
2. From there press “Win + R” dedicated keyboard keys.
3. The Run box will be displayed.
4. There enter “regedit” in order to run Registry Editor.
5. on Registry go to path “HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\SignIn”.
6. Then, go to the right panel of Registry and right click on a blank space.
7. Select “New” and pick “DWORD Value”.
8. Name this new value “SignInOptions”.
9. Right click on the new key and set its value to 3.
10. Close Registry Editor and Reboot your Windows 7, open an Office App to check if it works.Method 2: You can use the Group Policy to remove Office Sign In Option from Office 2016.
Here are the steps to follow:
1. Download the Office 2016 Administrative Template files and install it.
After self-extracting, we can get a folder and open the admx folder inside, where you can see some language-specific folders and Office application specific admx files.
Copy the ADMX files to C:\Windows\PolicyDefinitions
Copy the adml file under the corresponding language file to the corresponding language folder in C:\Windows\PolicyDefinitions
2.Press Windows+R to open Run>type gpedit.msc > hit Enter to launch the Group Policy Editor
3.Go to this path: Local Computer Policy > User Configuration > Administrative Templates > Microsoft Office 2016 > Miscellaneous
4. You should now see the option ‘Block signing into Office‘ > double click on it
Select ‘None allowed’ to disable the sign-in option.
5. Reboot your Windows 7, open an Office App to check if it works.Note: Blocking signing in Office may affect the use of the Office cloud service.