Block signing into Office 2016 Turn off the cloud features in Office 2013 using the Registry Registry Hive = HKEY_CURRENT_USERRegistry Path = Software\Microsoft\Office\16.0\Common\SignInValue Name = SignInOptionsValue Type = REG_DWORDValues:0 Both IDs allowed 1 Microsoft Account only 2 Org ID only 3 None allowedhttps://getadmx.com/?Category=Office2016&Policy=office16.Office.Microsoft.Policies.Windows::L_SignInOptions Using the Group Policy Editor instead Hit the Windows-r keys again to open the run box on the system. Type gpedit.msc and hit enter. This opens the Group Policy Editor. Navigate to the following tree: Local Computer Policy > User Configuration > Administrative Templates > Microsoft Office 2013 > Miscellaneous. Locate "Block signing into Office" in the list and double-click the entry. Select Enable from the window that opens up and "none allowed" to disallow the sign-in.